datavorous/entrance-exam-dataset huggingface dataset:
Which alkaline earth metal is the most reactive towards acids?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Calcium (Ca)
D Barium (Ba)

The correct answer is:
Barium (Ba)

Solution:
Among the alkaline earth metals, Barium (Ba) is the most reactive towards acids due to its lower ionization energy.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal is the most reactive with oxygen and water?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Calcium (Ca)
D Strontium (Sr)

The correct answer is:
Strontium (Sr)

Solution:
Strontium is the most reactive among these metals with oxygen and water, as it forms both the oxide and nitride more readily compared to the others.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal is used in the manufacturing of television tubes and fluorescent lamps?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Strontium (Sr)
D Barium (Ba)

The correct answer is:
Barium (Ba)

Solution:
Barium compounds are used in the production of television tubes and fluorescent lamps.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal is used in the production of fireworks to create a brilliant white light?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Strontium (Sr)
D Barium (Ba)

The correct answer is:
Strontium (Sr)

Solution:
Strontium is used in fireworks to produce a brilliant white light.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal nitrate crystallizes with six molecules of water?

Options:
A Beryllium nitrate (Be(NO3)2)
B Magnesium nitrate (Mg(NO3)2)
C Calcium nitrate (Ca(NO3)2)
D Strontium nitrate (Sr(NO3)2)

The correct answer is:
Magnesium nitrate (Mg(NO3)2)

Solution:
Magnesium nitrate crystallizes with six molecules of water, forming Mg(NO3)2·6H2O.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal nitrate shows the least tendency to form hydrates?

Options:
A Beryllium nitrate (Be(NO3)2)
B Magnesium nitrate (Mg(NO3)2)
C Calcium nitrate (Ca(NO3)2)
D Strontium nitrate (Sr(NO3)2)

The correct answer is:
Beryllium nitrate (Be(NO3)2)

Solution:
Beryllium nitrate shows the least tendency to form hydrates compared to the other alkaline earth metal nitrates.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is amphoteric in nature?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Calcium (Ca)
D Strontium (Sr)

The correct answer is:
Beryllium (Be)

Solution:
Beryllium oxide (BeO) is amphoteric, meaning it can react with both acids and bases, unlike the oxides of other alkaline earth metals which are typically basic in nature.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is commonly used in the production of cement?

Options:
A Beryllium oxide (BeO)
B Magnesium oxide (MgO)
C Calcium oxide (CaO)
D Barium oxide (BaO)

The correct answer is:
Calcium oxide (CaO)

Solution:
Calcium oxide (CaO), also known as quicklime, is commonly used in the production of cement.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is known for its high melting point and is useful for high-temperature applications?

Options:
A Beryllium oxide (BeO)
B Magnesium oxide (MgO)
C Calcium oxide (CaO)
D Barium oxide (BaO)

The correct answer is:
Magnesium oxide (MgO)

Solution:
Magnesium oxide (MgO) has the highest melting point among alkaline earth metal oxides, making it suitable for high-temperature applications.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is known for its strong alkaline properties and is used in the production of bleaching powder?

Options:
A Beryllium oxide (BeO)
B Magnesium oxide (MgO)
C Calcium oxide (CaO)
D Barium oxide (BaO)

The correct answer is:
Calcium oxide (CaO)

Solution:
Calcium oxide (CaO) is known for its strong alkaline properties and is used in the production of bleaching powder among other applications.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is sparingly soluble in water?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Calcium (Ca)
D Strontium (Sr)

The correct answer is:
Magnesium (Mg)

Solution:
The oxides of alkaline earth metals, except for beryllium oxide, are basic and react with water to form sparingly soluble hydroxides. Magnesium oxide (MgO) is an example of such an oxide.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is the least basic?

Options:
A Beryllium oxide (BeO)
B Magnesium oxide (MgO)
C Calcium oxide (CaO)
D Barium oxide (BaO)

The correct answer is:
Beryllium oxide (BeO)

Solution:
Beryllium oxide (BeO) is the least basic among the alkaline earth metal oxides. It is amphoteric, meaning it can react with both acids and bases.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is the least stable to heat?

Options:
A Beryllium (Be)
B Magnesium (Mg)
C Calcium (Ca)
D Strontium (Sr)

The correct answer is:
Magnesium (Mg)

Solution:
Magnesium oxide (MgO) is the least stable to heat among the alkaline earth metal oxides.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide is the most stable to heat?

Options:
A Beryllium oxide (BeO)
B Magnesium oxide (MgO)
C Calcium oxide (CaO)
D Strontium oxide (SrO)

The correct answer is:
Strontium oxide (SrO)

Solution:
Strontium oxide (SrO) is the most stable to heat among the alkaline earth metal oxides. As you move down the group, the thermal stability of the oxides generally increases, and strontium oxide is the most stable to high temperatures.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal oxide reacts with water to form a sparingly soluble hydroxide?

Options:
A Beryllium oxide (BeO)
B Magnesium oxide (MgO)
C Calcium oxide (CaO)
D Strontium oxide (SrO)

The correct answer is:
Beryllium oxide (BeO)

Solution:
Beryllium oxide (BeO) is the only alkaline earth metal oxide that does not react with water to form a sparingly soluble hydroxide. All the other alkaline earth metal oxides, including magnesium oxide (MgO), calcium oxide (CaO), and strontium oxide (SrO), react with water to form sparingly soluble hydroxides.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate has the highest hydration enthalpy?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Barium sulfate (BaSO4)

Solution:
Barium sulfate (BaSO4) has the highest hydration enthalpy among alkaline earth metal sulfates, which contributes to its lower solubility in water.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate has the highest lattice enthalpy?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Beryllium sulfate (BeSO4)

Solution:
Beryllium sulfate (BeSO4) has the highest lattice enthalpy among the alkaline earth metal sulfates due to the strong electrostatic attractions between the beryllium ions and sulfate ions in its crystal lattice.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate has the largest ionic radius?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Barium sulfate (BaSO4)

Solution:
Barium sulfate (BaSO4) has the largest ionic radius among alkaline earth metal sulfates due to the larger size of the barium ion (Ba2+).

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate has the smallest ionic charge on its metal ion?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Beryllium sulfate (BeSO4)

Solution:
Beryllium sulfate (BeSO4) has the smallest ionic charge on its metal ion (Be2+), which contributes to its unique properties and solubility in water despite its high lattice enthalpy.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate has the smallest ionic radius?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Beryllium sulfate (BeSO4)

Solution:
Beryllium sulfate (BeSO4) has the smallest ionic radius among alkaline earth metal sulfates due to the smaller size of the beryllium ion (Be2+).

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate is commonly used as a drying agent in chemistry laboratories due to its hygroscopic nature?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Magnesium sulfate (MgSO4)

Solution:
Magnesium sulfate (MgSO4), commonly known as Epsom salt, is hygroscopic and is used as a drying agent in chemistry laboratories to remove moisture from organic solvents.

Topic: Chemistry, s Block Elements, NEET
Which alkaline earth metal sulfate is known for its low solubility and use as a radiopaque contrast agent in medical imaging?

Options:
A Beryllium sulfate (BeSO4)
B Magnesium sulfate (MgSO4)
C Calcium sulfate (CaSO4)
D Barium sulfate (BaSO4)

The correct answer is:
Barium sulfate (BaSO4)

Solution:
Barium sulfate (BaSO4) is known for its low solubility and is used as a radiopaque contrast agent in medical imaging procedures such as X-rays and CT scans.

Topic: Chemistry, s Block Elements, NEET
Which alkane has the highest heat of combustion per gram?

Options:
A Methane
B Ethane
C Propane
D Butane

The correct answer is:
Methane

Solution:
Methane has the highest heat of combustion per gram among the given options. It releases more energy per gram when combusted.

Topic: Chemistry, Hydrocarbons, NEET
Which alkane has the highest number of carbon atoms?

Options:
A Methane
B Ethane
C Propane
D Butane

The correct answer is:
Butane

Solution:
Butane has the highest number of carbon atoms among the given options. It has four carbon atoms in its molecular structure.

Topic: Chemistry, Hydrocarbons, NEET
Which alkane is least likely to form minor products in the isomerization reaction?

Options:
A n-Pentane
B n-Hexane
C n-Butane
D n-Octane

The correct answer is:
n-Octane

Solution:
n-Octane is less likely to form minor products in the isomerization reaction because it has a longer and more stable carbon chain, making it less prone to isomerization compared to shorter alkanes.

Topic: Chemistry, Hydrocarbons, NEET
Which alkane is most likely to undergo isomerization easily in the presence of anhydrous aluminum chloride and hydrogen chloride gas?

Options:
A n-Pentane
B n-Hexane
C n-Butane
D n-Octane

The correct answer is:
n-Hexane

Solution:
n-Hexane is more likely to undergo isomerization easily in the presence of anhydrous aluminum chloride and hydrogen chloride gas because it has a longer carbon chain and more potential for structural rearrangement.

Topic: Chemistry, Hydrocarbons, NEET
Which alkane substitution reaction is most reactive towards halogens?

Options:
A Chlorination
B Bromination
C Iodination
D Fluorination

The correct answer is:
Fluorination

Solution:
Among the halogenation reactions, fluorination is the most reactive towards alkane substitution due to the highly reactive nature of fluorine.

Topic: Chemistry, Hydrocarbons, NEET
Which alkene does not follow Anti-Markownikoff's addition rule

Options:
A 2-butene
B 1-butene
C 2-pentene
D 2-hexene

The correct answer is:
2-butene

Solution:
Markownikoff as well as anti-Markownikoff's rule is valid only for unsymmetrical alkenes.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which alkene in the following is most stable?

Options:
A 1-butene
B 2-butene
C 1-pentene
D 2-pentene

The correct answer is:
2-butene

Solution:
Stability of alkene Î± no. of hyper conjugating structures ∝ no. of α-H
CH 3 â CH 2 Î± âCHâ=â CH 2 ââââ2âH.C.
CH 3 Î± âCH=CHâ CH 3 Î± âââââ6âH.C.
CH 3 â CH 2 â CH 2 Î± âCHâ=â CH 2 âââââ2âH.C.
CH 3 â CH 2 Î± âCH=CHâââ CH 2 Î± âââââ5âH.C.

Topic: Chemistry, General Organic Chemistry, NEET
Which alkene undergoes polymerization to form polypropene?

Options:
A Ethene
B Propene
C Butene
D Pentene

The correct answer is:
Propene

Solution:
Polypropene is formed by the polymerization of propene.

Topic: Chemistry, Hydrocarbons, NEET
Which alkene will give optically inactive product with Br2/CCl4 ?

Options:
A 1-butene
B Propene
C cis-2-butene
D trans-2-butene

The correct answer is:
trans-2-butene

Solution:
Here trans-2-butene gives optically inactive product while rest all give optically active porodcut
A.
B.
C.
D.

Topic: Chemistry, Hydrocarbons, NEET
Which alkyl halide from the following pairs would you expect to react more rapidly by an SN2 mechanism?

Options:
A (i)
B (ii)
C Both the compounds have same rate
D Neither of the compounds undergo SN2 reaction

The correct answer is:
(i)

Solution:
Correct Option is : (A)
(i)

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which alkyl halide from the following pairs would you expect to react more rapidly by an SN2 mechanism?

Options:
A Both the compounds have same rate
B (i)
C (ii)
D Neither of the compounds undergo SN2 reaction

The correct answer is:
(i)

Solution:
Correct Option is : (B)
(i)

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which alkyl halide has the highest boiling point among RI, RBr, RCl, and RF for the same alkyl group?

Options:
A RF
B RCl
C RBr
D RI

The correct answer is:
RI

Solution:
The boiling points of alkyl halides decrease in the order: RI > RBr > RCl > RF.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which allele is the dominant allele in the pea seed example based on the phenotype of seed shape?

Options:
A B
B b
C Both B and b
D Neither B nor b

The correct answer is:
B

Solution:
B is the dominant allele in the pea seed example based on the phenotype of seed shape.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which allele of the I gene does not produce any sugar?

Options:
A Ia
B Ib
C i
D All three alleles produce sugar

The correct answer is:
i

Solution:
The allele i does not produce any sugar.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which allele of the I gene is completely dominant over i?

Options:
A Ia
B Ib
C i
D Both Ia and Ib

The correct answer is:
Both Ia and Ib

Solution:
Both Ia and Ib are completely dominant over i.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which alloy is composed of copper and zinc?

Options:
A Brass
B Bronze
C Stainless steel
D Ferrous alloy

The correct answer is:
Brass

Solution:
Brass is an alloy of copper and zinc.

Topic: Chemistry, d and f Block Elements, NEET
Which amino acid among the following is non-essential?

Options:
A Phenylalanine
B Leucine
C Tryptophan
D Tyrosine

The correct answer is:
Tyrosine

Solution:
Amino acids are essential or non essential. Essential amino acids are those that are not present in the body and thus are obtained from the diet. Non essential amino acids are those that are present in the body. Essential amino acids are Phenylalanine, Valine, Threonine, Tryptophan, Isoleucine, Methionine, Histidine, Alanine, Leucine, Lysine. Apart from this all other amino acids are non essential amino acids.

Topic: Chemistry, Biomolecules, NEET
Which amino acid configuration is less common in naturally occurring amino acids?

Options:
A D-configuration
B L-configuration
C R-configuration
D S-configuration

The correct answer is:
D-configuration

Solution:
The most naturally occurring amino acids have L-configuration, making D-configuration less common.

Topic: Chemistry, Biomolecules, NEET
Which amino acid contains a benzene ring in its side chain?

Options:
A Phenylalanine
B Tyrosine
C Tryptophan
D Histidine

The correct answer is:
Phenylalanine

Solution:
Phenylalanine contains a benzene ring in its side chain.

Topic: Chemistry, Biomolecules, NEET
Which amino acid contains a sulfhydryl group (-SH)?

Options:
A Cysteine
B Methionine
C Proline
D Histidine

The correct answer is:
Cysteine

Solution:
Cysteine contains a sulfhydryl group (-SH) in its side chain.

Topic: Chemistry, Biomolecules, NEET
Which amino acid has a hydroxyl group (-OH) in its side chain?

Options:
A Cysteine
B Methionine
C Serine
D Phenylalanine

The correct answer is:
Serine

Solution:
Serine has a hydroxyl group (-OH) in its side chain.

Topic: Chemistry, Biomolecules, NEET
Which amino acid has a three-letter symbol "Val"?

Options:
A Valine
B Isoleucine
C Arginine
D Lysine

The correct answer is:
Valine

Solution:
Valine has a three-letter symbol "Val."

Topic: Chemistry, Biomolecules, NEET
Which amino acid is an exception and is not optically active?

Options:
A Glycine
B Alanine
C Valine
D Leucine

The correct answer is:
Glycine

Solution:
Glycine is the only naturally occurring amino acid that is not optically active because it lacks an asymmetric α-carbon atom.

Topic: Chemistry, Biomolecules, NEET
Which amino acid plays a central role in nitrogen metabolism?

Options:
A Glutamic acid
B α -ketoglutaric acid
C Aspartic acid
D Aminated keto acid

The correct answer is:
Glutamic acid

Solution:
Glutamic acid is the first amino acid to be synthesized in nitrogen metabolism by the reamination of α -ketoglutaric acid from which 17 different amino acids are synthesized by transanimation.

Topic: Biology, Mineral Nutrition, NEET
Which amino acid was first obtained from cheese?

Options:
A Leucine
B Tyrosine
C Arginine
D Lysine

The correct answer is:
Tyrosine

Solution:
Tyrosine was first obtained from cheese, with "tyros" in Greek meaning cheese.

Topic: Chemistry, Biomolecules, NEET
Which amino acid will be carried at the acceptor arm of A and B tRNA in the figure given below?

Options:
A A- tyrosine, B- serine
B A- serine, B- tyrosine
C A- methionine, B- tryptophan
D A- tryptophan, B- serine

The correct answer is:
A- serine, B- tyrosine

Solution:
AGU codes for serine and UAC codes for tyrosine. Tyrosine is the precursor of melanin pigment in human skin. Tyrosine is also important for synthesis of thyroxin. Serine is important in several human disorders.

Topic: Biology, Molecular Basis of Inheritance, NEET
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

Options:
A Bacillus
B Pseudomonas
C Mycoplasma
D Nostoc

The correct answer is:
Mycoplasma

Solution:
Mycoplasmas are smallest, wall-less prokaryotes, pleomorphic in nature. These are pathogenic on both plants and animals. Smallest cellular organism is Mycoplasma gellisepticum.

Topic: Biology, Biological Classification, NEET, NEET 2017
Which among the following can be seen in the ultrastructure of both eukaryotic and prokaryotic cell?

Options:
A Ribosome
B Nucleoproteins
C Chloroplast
D Leucoplast

The correct answer is:
Ribosome

Solution:
The ribosomes are the smallest known electron microscopic without membrane, ribonucleoprotein particles attached either on RER or floating freely in the cytoplasm and are the sites of protein synthesis. Presence of ribosomes (size 23 nm in diameter) is revealed with the help of an electron microscope.

Topic: Biology, Cell - The Unit of Life, NEET
Which among the following can be used as a hypnotic drug?

Options:
A Luminal
B Salol
C Catechol
D Chemisol

The correct answer is:
Luminal

Solution:
These drugs produce sleep and are habit forming common example of hypnotic drugs are Luminal and Seconal.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which among the following complex compound will give white precipitate with BaCl2(aq)?

Options:
A [CrNH35SO4]Cl
B [Cr(NH3)5Cl]SO4
C [Co(NH3)4SO4]NO2
D Both (A) and (B)

The correct answer is:
[Cr(NH3)5Cl]SO4

Solution:
The white precipitate formed is of BaSO4 .
[Cr(NH3)5Cl]SO4→[Cr(NH3)5Cl]2++SO42-
(Cr(NH3)5Cl]2++SO42-+BaCl2→[Cr(NH3)5Cl]Cl2+BaSO4+HCl .

Topic: Chemistry, Coordination Compounds, NEET
Which among the following compound has (L) configuration

Options:
A
B
C
D

The correct answer is:

Solution:
This compound has L-configuration

Topic: Chemistry, General Organic Chemistry, NEET
Which among the following compound is not an organometallic compound?

Options:
A Ethyl magnesium bromide
B Tetraethyl lead
C Sodium ethoxide
D Trimethyl aluminium

The correct answer is:
Sodium ethoxide

Solution:
Organometallic compounds are those compounds in which carbon atom is directly linked to metal. But in sodium ethoxide as oxygen is attached to sodium metal so it is not a organometallic compound.

Topic: Chemistry, Coordination Compounds, NEET
Which among the following compounds is used for protection of carbonyl groups?

Options:
A HCN
B CH3OH
C
D C2H5OH

The correct answer is:

Solution:
Vicinal diols like glycol etc. are used to protect carbonyl group by cyclic ketal formations

Topic: Chemistry, Aldehydes and Ketones, NEET
Which among the following compounds on basic hydrolysis will gives formaldehyde?

Options:
A CHCl3
B CH3–CHCl2
C CH2Cl2
D CCl4

The correct answer is:
CH2Cl2

Solution:
CH2Cl2 on basic hydrolysis will gives formaldehyde
CH3–CHCl2 on basic hydrolysis will gives acetaldehyde

Topic: Chemistry, Aldehydes and Ketones, NEET
Which among the following compounds will form intra-molecular hydrogen bond?

Options:
A Acetone
B Nitroethane
C 2,3-pentanedione
D Benzaldehyde

The correct answer is:
2,3-pentanedione

Solution:
Pentan-2,3-di-one can have intra-molecular H-bonding in its enol form. This makes enol form more stable

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Which among the following compounds will show geometrical isomerism

Options:
A CH3–CH=CH2
B
C
D CH3–CH=CHD

The correct answer is:
CH3–CH=CHD

Solution:
As for geometrical isomerism, both substiuents on each doubly bonded carbon should be different so only CH3–CH=CHD can show geometrical isomerism. Rest other do not show G.I. as they have same species on same double bonded carbon. For e.g.

Topic: Chemistry, General Organic Chemistry, NEET
Which among the following compounds will show tautomersim

Options:
A 2, 2-dimethylpropanal
B 2, 2-dimethyl-1-nitropropane
C Acetyl actone
D Benzophenone

The correct answer is:
Acetyl actone

Solution:
Acetyl acetone has α -H-atom so it can show tautomersim as follows
As other compounds have no hydrogen on α -carbon so they cannot show it

Topic: Chemistry, General Organic Chemistry, NEET
Which among the following depicts the correct order of acidity?

Options:
A
B
C
D

The correct answer is:

Solution:
Terminal alkynes are acidic in nature.​​​​​

Topic: Chemistry, Hydrocarbons, NEET, NEET 2017
Which among the following depicts the correct order of acidity?

Options:
A
B
C
D

The correct answer is:

Solution:

Topic: Chemistry, General Organic Chemistry, NEET
Which among the following drugs is used as an analgesic?

Options:
A Penicillin
B Paludrin
C Sulphaguanidine
D Analgin

The correct answer is:
Analgin

Solution:
An analgesic drugs is one which relieves or decrease the pain e.g., analgin, aspirin (belongs to non-narcotics and morphine, codein, heroin (belongs to narcotics class)

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which among the following factors is the most important in making fluorine the strongest oxidizing agent?

Options:
A ionization enthalpy
B hydration enthalpy
C electron affinity
D bond dissociation energy

The correct answer is:
hydration enthalpy

Solution:
Standured reduction potential of F2 is higest (postive) in electrochemical series i.e. strongest oxidizing agent. This value is dependent on hydration enthalpy.

Topic: Chemistry, Thermodynamics (C), NEET
. Which among the following has least conductivity-

Options:
A Graphite
B Iron
C Sodium
D Copper

The correct answer is:
Graphite

Solution:
Correct Option is : 1
Graphite

Topic: Chemistry, Electrochemistry, NEET
Which among the following has the maximum pKbvalue?

Options:
A Methanamine
B N-ethylethanamine
C N,N-dimethylmethanamine
D N,N-diethylethanamine

The correct answer is:
N,N-dimethylmethanamine

Solution:
Correct Option is : 3
N,N-dimethylmethanamine

Topic: Chemistry, Amines, NEET