datavorous/entrance-exam-dataset huggingface dataset:
Which amongst the following will be most readily dehydrated under acidic conditions?

Options:
A
B
C
D

The correct answer is:

Solution:
The mechanism for this reaction involves the protonation of one of the hydroxyl groups by the acid catalyst, followed by the loss of a molecule of water to form a carbocation intermediate. The other hydroxyl group then attacks the carbocation.

Topic: Chemistry, General Organic Chemistry, NEET, NEET 2023 (All India)
Which analgesics are called opiates?

Options:
A Opiates are synthetic pain relievers.
B Opiates are over-the-counter pain medications.
C Narcotic analgesics which are obtained from opium poppy are called opiates.
D Opiates are non-prescription pain relievers.

The correct answer is:
Narcotic analgesics which are obtained from opium poppy are called opiates.

Solution:
Correct Option is : (C)
Narcotic analgesics which are obtained from opium poppy are called opiates.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which analytical techniques are commonly used to determine the concentration of alkali metals in a sample?

Options:
A Chromatography and Mass Spectrometry
B Flame Photometry and Atomic Absorption Spectroscopy
C Infrared Spectroscopy and NMR Spectroscopy
D X-ray Diffraction and Electron Microscopy

The correct answer is:
Flame Photometry and Atomic Absorption Spectroscopy

Solution:
Flame photometry and atomic absorption spectroscopy are commonly used analytical techniques to determine the concentration of alkali metals in a sample.

Topic: Chemistry, s Block Elements, NEET
Which animal and phylum is represented in the given figure?

Options:
A Ascidia - Hemichordata
B Ascidia - Chordata
C Ascidia - Tunicata
D Ascidia - Urochordata

The correct answer is:
Ascidia - Chordata

Solution:
Phylum Chordata is divided into three subphyla: Urochordata or Tunicata, Cephalochordata, and Vertebrata. In Urochordata, the notochord is present only in the larval tail.
Examples: Ascidia, Salpa, Doliolum, etc.

Topic: Biology, Animal Kingdom, NEET
Which animal group includes insects and spiders?

Options:
A Fish
B Amphibians
C Arthropods
D Mollusks

The correct answer is:
Arthropods

Solution:
Arthropods are a group of animals that includes insects and spiders, as well as crustaceans and millipedes.

Topic: Biology, Animal Kingdom, NEET
Which animal group includes mammals, birds, and reptiles?

Options:
A Fish
B Amphibians
C Vertebrates
D Invertebrates

The correct answer is:
Vertebrates

Solution:
Vertebrates are animals that have a spinal column and include mammals, birds, and reptiles, among others.

Topic: Biology, Animal Kingdom, NEET
Which anion is the weakest base?

Options:
A C2H5O-
B NO3-
C F-
D CH3COO-

The correct answer is:
NO3-

Solution:
The conjugate acids are C2H5OH,HNO3,HF and CH3COOH respectively. Here, strongest acid is HNO3 , therefore, its conjugate base, NO3- is the weakest base.

Topic: Chemistry, General Organic Chemistry, NEET
Which anomeric form of a sugar molecule has the hydroxyl group positioned above the ring plane?

Options:
A Alpha (α)
B Beta (β)
C Gamma (γ)
D Delta (δ)

The correct answer is:
Beta (β)

Solution:
In the beta anomeric form, the hydroxyl group is positioned above the ring plane.

Topic: Chemistry, Biomolecules, NEET
Which antibiotic has a static (inhibitory) effect on microbes?

Options:
A Penicillin
B Aminoglycosides
C Ofloxacin
D Chloramphenicol

The correct answer is:
Chloramphenicol

Solution:
Chloramphenicol is an example of a bacteriostatic antibiotic, which has a static (inhibitory) effect on microbes.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which antibiotic inhibits interaction between $t$ RNA and $m$ RNA during bacterial protein synthesis?

Options:
A tetracycline
B erythromycin
C neomycin
D streptomycin

The correct answer is:
neomycin

Solution:
Neomycin inhibits interaction between tRNA and mRNA during bacterial protein synthesis.

Topic: Biology, Molecular Basis of Inheritance, NEET, NEET 2006
Which antibiotics are as important broad spectrum antibiotics besides Chloramphenicol?

Options:
A Vancomycin and dysidazirine
B Ofloxacin and dysidazirine
C Vancomycin and ofloxacin
D Penicillin and Amoxycillin

The correct answer is:
Vancomycin and ofloxacin

Solution:
Vancomycin and ofloxacin are the other important broad spectrum antibiotics.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which antibiotics are described as synthetic modifications of penicillins?

Options:
A Penicillin G
B Ampicillin and Amoxycillin
C Broad spectrum antibiotics
D Limited spectrum antibiotics

The correct answer is:
Ampicillin and Amoxycillin

Solution:
Ampicillin and Amoxycillin are synthetic modifications of penicillins.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which antibiotics listed in the paragraph have a bactericidal effect?

Options:
A Penicillin and Erythromycin
B Aminoglycosides and Tetracycline
C Ofloxacin and Chloramphenicol
D Penicillin and Aminoglycosides

The correct answer is:
Penicillin and Aminoglycosides

Solution:
Penicillin and Aminoglycosides are examples of bactericidal antibiotics.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which antibody titer rises during allergy?

Options:
A Immunoglobulin A
B Immunoglobulin G
C Immunoglobulin M
D Immunoglobulin E

The correct answer is:
Immunoglobulin E

Solution:
The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The substances to which such an immune response is produced are called allergens. The antibodies produced to these are of IgE type.

Topic: Biology, Human Health and Diseases, NEET
Which antigen is responsible for erythroblastosis foetalis?

Options:
A Antigen A
B Antigen B
C Rh antigen
D Antigen O

The correct answer is:
Rh antigen

Solution:
Erythroblastosis foetalis: It is a case of Rh incompatibility (mismatching). If an Rh-ve pregnant mother is having a Rh+ve foetus, then Rh antigens of the foetus are not exposed to the Rh-ve blood of the mother in the first pregnancy because the two types of blood are well separated by the placenta. However, during the delivery of the first Rh+ve child, some amount of foetal blood is exposed to the maternal blood. In this condition, the mother starts preparing antibodies against Rh antigen in her blood. These antibodies from the mother (Rh-ve) can leak into the blood of the foetus (Rh+ve) during next Rh+ve pregnancies and destroy the foetal RBCs.
Symptoms: Severe anaemia, jaundice and even death. Prevention: Administration anti-Rh antibodies to the mother immediately after the delivery of the first child.

Topic: Biology, Body Fluids and Circulation, NEET
Which antiseptic is used for eyes in a dilute aqueous solution?

Options:
A Iodoform
B Boric acid
C Dettol
D Bithionol

The correct answer is:
Boric acid

Solution:
Boric acid in a dilute aqueous solution is a weak antiseptic for eyes.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which application is NOT commonly associated with Nylon 6,6?

Options:
A Sheets manufacturing
B Bristles for brushes
C Fabric production
D Tyre cords

The correct answer is:
Tyre cords

Solution:
Nylon 6,6 is commonly used in the manufacture of sheets, bristles for brushes, and fabrics, but it is not typically used for tyre cords.

Topic: Chemistry, Polymers, NEET
Which are the monomers, used in the production of nylon-6, 6?

Options:
A Hexamethylene diamine and ethylene glycol
B Adipic acid and ethylene glycol
C Adipic acid and hexamethylene diamine
D Dimethyl terephthalate and ethylene glycol

The correct answer is:
Adipic acid and hexamethylene diamine

Solution:
Adipic acid (HOOC-(CH2)4-COOH) and Hexamethylene diamine (NH2-(CH2)6-NH2)

Topic: Chemistry, Polymers, NEET
Which arrangement of electrons leads to ferromagnetism?

Options:
A ↑↑↑↑↑
B ↑↓↑↓
C ↑↑↑↓↓
D None of these

The correct answer is:
↑↑↑↑↑

Solution:
Ferromagnetism is due to spontaneous alignment of the magnetic dipoles in same direction.
âââââ

Topic: Chemistry, Solid State, NEET
Which arrangement of the following esters correctly, indicates the decreasing rate of the hydrolysis?

Options:
A 1, 2, 3, 4, 5
B 5, 3, 4, 2, 1
C 1, 2, 3, 5, 4
D 5, 4, 3, 2, 1

The correct answer is:
5, 4, 3, 2, 1

Solution:
Hydrolysis of ester is an example of nucleophilic acyl substitution reaction and electron withdrawing group accelerate the substitution reaction. Hence, phenoxy with nitro at para position '5' is most reactive and phenoxy with methoxy at para position '1' is least reactive. Also chlorine is less electron withdrawing than aceto gropu, '3' is less reactive than '4'. Hence, overall reactivity order is
Rate of hydrolysis is 5 > 4 > 3 > 2 > 1.

Topic: Chemistry, Carboxylic Acid Derivatives, NEET
Which artificial sweetener is the most successful and widely used?

Options:
A Saccharin
B Sucrose
C Aspartame
D Ortho-sulphobenzimide

The correct answer is:
Aspartame

Solution:
Aspartame is the most successful and widely used artificial sweetener.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which atmospheric layer contains dinitrogen, dioxygen, ozone, and little water vapor?

Options:
A Troposphere
B Stratosphere
C Mesosphere
D Thermosphere

The correct answer is:
Stratosphere

Solution:
The stratosphere contains dinitrogen, dioxygen, ozone, and only a small amount of water vapor.

Topic: Chemistry, Environmental Chemistry, NEET
Which atom in concentrated sulphuric acid acts as the electrophile in the addition to alkenes?

Options:
A Sulfur
B Hydrogen
C Oxygen
D Carbon

The correct answer is:
Oxygen

Solution:
In the electrophilic addition of concentrated sulphuric acid to alkenes, the oxygen atom in sulfuric acid acts as the electrophile.

Topic: Chemistry, Hydrocarbons, NEET
Which atom is more electronegative, fluorine or nitrogen?

Options:
A Fluorine
B Nitrogen
C Both have the same electronegativity
D Cannot be determined.

The correct answer is:
Fluorine

Solution:
Fluorine is more electronegative than nitrogen.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which atom is replaced by a sulphonic acid group during sulphonation?

Options:
A Oxygen
B Carbon
C Hydrogen
D Sulfur

The correct answer is:
Hydrogen

Solution:
In sulphonation, a hydrogen atom in the ring is replaced by a sulphonic acid group.

Topic: Chemistry, Hydrocarbons, NEET
Which atomic orbital can combine with the 2pz orbital of another atom?

Options:
A 2px orbital
B 2py orbital
C 2pz orbital
D 1s orbital

The correct answer is:
2pz orbital

Solution:
The 2pz orbital of one atom can combine with the 2pz orbital of another atom because they have the same symmetry.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which atoms are indicated by the following configurations ? (i) [He] 2s1(ii) [Ne] 3s23p3and (iii) [Ar] 4s23d1

Options:
A (i)Lithium , (ii)Phosphorus and (iii)Scandium
B (i)Helium , (ii)Phosphorus and (iii)Argon
C (i)Lithium , (ii)Arsenic and (iii)Scandium
D (i)Lithium , (ii)Phosphorus and (iii)Rubidium

The correct answer is:
(i)Lithium , (ii)Phosphorus and (iii)Scandium

Solution:
Correct Option is : (A)
(i)Lithium , (ii)Phosphorus and (iii)Scandium

Topic: Chemistry, Structure of Atom, NEET
Which atoms are involved in β-elimination from a haloalkane?

Options:
A Hydrogen atom from α-carbon and a halogen atom from β-carbon
B Hydrogen atom from β-carbon and a halogen atom from α-carbon
C Hydrogen atom from α-carbon and a carbon atom from β-carbon
D Hydrogen atom from β-carbon and a carbon atom from α-carbon

The correct answer is:
Hydrogen atom from β-carbon and a halogen atom from α-carbon

Solution:
In β-elimination, a hydrogen atom is eliminated from the β-carbon, and a halogen atom is eliminated from the α-carbon.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which atoms are specifically written in bond-line structural representations?

Options:
A Carbon and hydrogen atoms
B Oxygen, chlorine, and nitrogen atoms
C Hydrogen atoms only
D All atoms except carbon and hydrogen

The correct answer is:
Oxygen, chlorine, and nitrogen atoms

Solution:
In bond-line structural representations, only oxygen, chlorine, nitrogen, etc., are specifically written, while carbon and hydrogen atoms are not shown.

Topic: Chemistry, General Organic Chemistry, NEET
Which atoms in a molecule are considered to have an octet of electrons, except for hydrogen?

Options:
A Hydrogen
B Oxygen
C Carbon
D Nitrogen

The correct answer is:
Oxygen

Solution:
All the atoms in a molecule are considered to have an octet of electrons except for hydrogen, which has a duplet.

Topic: Chemistry, General Organic Chemistry, NEET
Which auxin helps to promote flowering in pineapples?

Options:
A IBA
B IAA
C NAA
D 2, 4-D

The correct answer is:
IAA

Solution:
Auxins like IAA help to promote flowering in pineapples.

Topic: Biology, Plant - Growth and Development, NEET
Which auxins are synthetic?

Options:
A IAA and IBA
B NAA and 2, 4-D
C IBA and 2, 4-D
D IAA and NAA

The correct answer is:
NAA and 2, 4-D

Solution:
NAA (naphthalene acetic acid) and 2, 4-D (2, 4-dichlorophenoxyacetic) are synthetic auxins.

Topic: Biology, Plant - Growth and Development, NEET
Which axis is conventionally taken as the molecular axis in the context of atomic orbital combination?

Options:
A x-axis
B y-axis
C z-axis
D All axes are considered molecular axes.

The correct answer is:
z-axis

Solution:
Conventionally, the z-axis is taken as the molecular axis in the context of atomic orbital combination.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which axis is mentioned as the direction along which the two sp hybrid orbitals point?

Options:
A x-axis
B y-axis
C z-axis
D All three axes simultaneously

The correct answer is:
z-axis

Solution:
The two sp hybrid orbitals point along the z-axis.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which bacteria are utilized in the biogas plant?

Options:
A Methanogens
B Nitrifying
C Ammonifying
D Denitrifying

The correct answer is:
Methanogens

Solution:
Methanobacillus (methanogen) occurs in marshes and also in dung. It produced CH4 gas under anaerobic conditions and is utilized in gobar gas plants.

Topic: Biology, Microbes in Human Welfare, NEET
Which bacteria is utilized in Gobar gas plant?

Options:
A Methanogens
B Nitrifying bacteria
C Ammonifying bacteria
D Denitrifying bacteria

The correct answer is:
Methanogens

Solution:
Methanogens produce methane, carbon dioxide and hydrogen gas by anaerobic digestion of cellulosic plant part. Thus, methanogens help in producing biogas or gobar bas.

Topic: Biology, Microbes in Human Welfare, NEET, NEET 2002
Which bacteria is utilized in gober gas plants?

Options:
A Methanogens
B Nitrifying bacteria
C Ammonifyging bacteria
D Denitrifying bacteria

The correct answer is:
Methanogens

Solution:
Methanobacillus (methanogen) occurs in marshes and also in dung. It produces CH4 gas under anaerobic condition and is utilised in gobar gas plant.

Topic: Biology, Biological Classification, NEET
Which balanced chemical equation represents the reaction of liquid hydrazine (N2H4) with chlorate ion (ClO3–) in a basic medium, resulting in the production of nitric oxide gas and chloride ion in the gaseous state?

Options:
A 6N2H4+ 8ClO3–→ 12NO + 8Cl–+ 12H2O
B 3N2H4+ 2ClO3–→ 2NO + Cl2 + H2O
C N2H4+ 3ClO3–→ 3NO + 3Cl–+ H2O
D N2H4+ 4ClO3–→ 4NO + 2Cl2+ 2H2O

The correct answer is:
6N2H4+ 8ClO3–→ 12NO + 8Cl–+ 12H2O

Solution:
Correct Option is : (A)
6N2H4+ 8ClO3–→ 12NO + 8Cl–+ 12H2O

Topic: Chemistry, Redox Reactions, NEET
Which balanced chemical equation represents the reaction of permanganate ion (MnO4–) with sulfur dioxide gas in acidic medium to produce Mn2+and hydrogen sulfate ion?

Options:
A 2MnO4–+ H++ 5SO2+ 2H2O → 2Mn2++ 3HSO4–
B 4MnO4–+ 6SO2+ 4H2O → 4Mn2++ 6HSO4–
C MnO4–+ SO2+ H2O → Mn2++ HSO4–
D 3MnO4–+ 2SO2+ 3H2O → 3Mn2++ 2HSO4–

The correct answer is:
2MnO4–+ H++ 5SO2+ 2H2O → 2Mn2++ 3HSO4–

Solution:
Correct Option is : (A)
2MnO4–+ H++ 5SO2+ 2H2O → 2Mn2++ 3HSO4–

Topic: Chemistry, Redox Reactions, NEET
Which behaviour of bromine is explained in the reaction given below
H2O+Br2→HOBr+HBr

Options:
A Proton acceptor only
B Reduced only
C Oxidised only
D Both oxidised and reduced

The correct answer is:
Both oxidised and reduced

Solution:
Br02+H2O→HOBr+1+HBr-1
In the above reaction the oxidation number of Br2 increases from zero (in Br2 ) to +1 (in HOBr ) and decrease from zero ( Br2 ) to – 1 (in HBr ). Thus Br2 is oxidised as well as reduced & hence it is a redox reaction.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which blood vessel ends in an organ other than the heart?

Options:
A Pulmonary vein
B Pulmonary artery
C Hepatic portal vein
D Hepatic vein

The correct answer is:
Hepatic portal vein

Solution:
Hepatic portal system
It represents the vascular connection between the digestive tract and liver.
Function: Hepatic portal vein carries nutrient-rich blood from intestine to the liver before it is delivered to the systemic circulation.

Topic: Biology, Body Fluids and Circulation, NEET
Which body fluid is commonly used by higher organisms including humans for transporting materials within the body?

Options:
A Water
B Lymph
C Blood
D None of the above

The correct answer is:
Blood

Solution:
Blood is the most commonly used body fluid by most of the higher organisms including humans for transporting materials within the body.

Topic: Biology, Body Fluids and Circulation, NEET
Which body of the Government of India regulates GM research and safety of introducing GM organisms for public services?

Options:
A Bio-safety committee
B Indian Council of Agricultural Research
C Genetic Engineering Approval Committee
D Research Committee on Genetic Manipulation

The correct answer is:
Genetic Engineering Approval Committee

Solution:
Genetic Engineering Approval Committee regulates GM research and safety of introducing GM organisms for public services.

It is also responsible for evaluating numerous activities, including large scale use of microorganisms that are hazardous to the environment. GEAC is also involved in the research and industrial production of the recombinants from the environmental perspective.

Topic: Biology, Biotechnology and Its Applications, NEET, NEET 2015 (Phase 1)
Which bond angle, θ would result in maximum dipole moment for the triatomic molecule YXY?

Options:
A θ=90°
B θ=120°
C θ=180°
D θ=150°

The correct answer is:
θ=90°

Solution:
The resultant dipole moment, μ=μ12+μ22+2μ1μ2cosθ . Therefore, smaller the bond angle, the greater the resultant dipole moment.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which bond is more polar in the following pairs of molecules between H3C–H and H3C–Br

Options:
A C–Br, since Br is more electronegative than H
B C–Br, since H is more electronegative than H
C C–H, since Br is more electronegative than H
D C–H, since Br is less electronegative than H

The correct answer is:
C–H, since Br is more electronegative than H

Solution:
Correct Option is : (C)
C–H, since Br is more electronegative than H

Topic: Chemistry, General Organic Chemistry, NEET
Which bond is more polar in the following pairs of molecules between H3C–NH2and H3C–OH

Options:
A C–N, since O is less electronegative than N
B C–O, since O is less electronegative than N
C C–N, since O is more electronegative than N
D C–O, since O is more electronegative than N

The correct answer is:
C–O, since O is more electronegative than N

Solution:
Correct Option is : (D)
C–O, since O is more electronegative than N

Topic: Chemistry, General Organic Chemistry, NEET
Which bond is more polar in the following pairs of molecules between H3C–OH and H3C–SH

Options:
A C–O, since O is less electronegative than S
B C–S, since O is more electronegative than S
C C–O, since O is more electronegative than S
D C–S, since O is less electronegative than S

The correct answer is:
C–O, since O is more electronegative than S

Solution:
Correct Option is : (C)
C–O, since O is more electronegative than S

Topic: Chemistry, General Organic Chemistry, NEET
Which bond undergoes slow cleavage in step I of the reaction?

Options:
A C—C bond
B C—H bond
C C—Br bond
D C—O bond

The correct answer is:
C—Br bond

Solution:
In step I, the polarized C—Br bond undergoes slow cleavage.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which boron compound is referred to as "inorganic benzene" due to its ring structure?

Options:
A Diborane
B Borazine
C Boric acid
D Sodium borohydride

The correct answer is:
Borazine

Solution:
Borazine is "inorganic benzene" due to its ring structure with alternate BH and NH groups.

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
Which can adsorb larger volume of hydrogen gas?

Options:
A Colloidal solution of palladium
B Finely divided nickel
C Finely divided platinum
D Colloidal Fe(OH)3

The correct answer is:
Colloidal solution of palladium

Solution:
Colloidal palladium has maximum surface area hence it adsorbs H2 gas to the largest extent.

Topic: Chemistry, Surface Chemistry, NEET
Which can be explained as applications of Le Chatelier's principle?

Options:
A Transport of oxygen by haemoglobin in blood
B Removal of CO2 from tissues by blood
C Tooth decay due to use of sweet substances
D All of the above

The correct answer is:
All of the above

Solution:
(i) The haemoglobin of RBC combines with oxygen in lungs following the equilibrium,
Hb(s)+O2(g)âHbO2(s)
When these are at lungs, the partial pressure of O2 being appreciable show forward reaction, however when they pass to tissues, the partial pressure of O2 decreases to favour backward reaction releasing O2 .
(ii) Removal of CO2 from blood is based on the equilibrium,
CO2(g)+H2O(l)âH+(aq)+HCO3-(aq)
In tissues CO2 gets dissolved in H2O due to high pressure whereas in lungs, the CO2 is released out because of low pressure of CO2 .
(iii) Tooth enamel substance (Hydroxyapatite) Ca5(PO4)3OH shows the following equilibrium,
Ca 5 (PO 4 ) 3 OH  ⇌ Demineralization   5Ca 2+ (aq) +  3PO 4 3−  (aq) +  OH − (aq)
The use of sweet material or fermentation produces H+ . Which combines with O-H to favour demineralisation of enamel causing tooth decay.

Topic: Chemistry, Chemical Equilibrium, NEET
Which can reacts most readily with ethanol?

Options:
A p-nitrobenzyl bromide
B p-chlorobenzyl bromide
C p-methoxybenzyl bromide
D p-methylbenzyl bromide

The correct answer is:
p-methoxybenzyl bromide

Solution:
Here reaction occur by S N 1 mechanism.
reactivity ∝ stability of carbonation.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which carbohydrate is mentioned as being chemically correlated to the D(+) isomer of glyceraldehyde?

Options:
A Lactose
B Fructose
C Starch
D Glucose

The correct answer is:
Glucose

Solution:
Compounds chemically correlated to the D(+) isomer of glyceraldehyde have a D-configuration, and glucose is one such compound.

Topic: Chemistry, Biomolecules, NEET
Which carbohydrate is used by plants to build their cell walls?

Options:
A Sucrose
B Lactose
C Cellulose
D Maltose

The correct answer is:
Cellulose

Solution:
Cellulose is used by plants to build their cell walls.

Topic: Chemistry, Biomolecules, NEET
Which carbon atom in a sugar molecule is also known as the anomeric carbon?

Options:
A Carbon-2 (C2)
B Carbon-3 (C3)
C Carbon-4 (C4)
D Carbon-1 (C1)

The correct answer is:
Carbon-1 (C1)

Solution:
The anomeric carbon in a sugar molecule is also known as Carbon-1 (C1).

Topic: Chemistry, Biomolecules, NEET
Which carbon atoms in lactose form the linkage between its constituent sugars?

Options:
A C1 of galactose and C2 of glucose.
B C1 of galactose and C4 of glucose.
C C2 of galactose and C3 of glucose.
D C3 of galactose and C4 of glucose.

The correct answer is:
C1 of galactose and C4 of glucose.

Solution:
The linkage in lactose is between C1 of galactose and C4 of glucose.

Topic: Chemistry, Biomolecules, NEET
Which carbon atoms in the pentose sugar are involved in the formation of phosphodiester linkages between nucleotides?

Options:
A 1¢ and 2¢
B 2¢ and 3¢
C 3¢ and 4¢
D 4¢ and 5¢

The correct answer is:
2¢ and 3¢

Solution:
Phosphodiester linkages are formed between the 3¢ carbon of one pentose sugar and the 5¢ carbon of the next pentose sugar in the nucleotide chain.

Topic: Chemistry, Biomolecules, NEET