datavorous/entrance-exam-dataset huggingface dataset:
Which of the following statements is incorrect?

Options:
A Cassiterite ore of tin contains the impurities of Wol-framite which are separated by electromagnetic separator.
B Tin metal is obtained by the carbon reduction of black tin.
C In the extraction of lead from galena, the roasting and self-reduction are carried in the same furnace at different temperatures.
D Reducing agent of haematite in blast-furnace is coke in upper part and CO in lower part of furnace.

The correct answer is:
Reducing agent of haematite in blast-furnace is coke in upper part and CO in lower part of furnace.

Solution:
(i) Cassiterite contains iron and manganese tungstate, called as Wolframite.
They have magnetic properties.
(ii) Purified ore that contains 70% SnO2 is called black tin.
SnO2+2C→Sn+2CO (carbon reduction)
(iii) Roasting is done at moderate temperature in presence of air in reverberatory furnace. Then air supply is stopped and temperature is increased to melt the mass when self
reduction takes place.
(iv) At 500 to 800K (lower temperature range in the upper part of blast furnace)
3Fe2O3+CO→2Fe3O4+CO2
Fe3O4+CO→3Fe+4CO2
Fe2O3+CO→2FeO+CO2
At 900 to 1500K (higher temperature range in the lower part of blast furnace:
C+CO2→2CO , FeO+CO→Fe+CO2

Topic: Chemistry, General Principles and Processes of Isolation of Metals, JEE Main
Which of the following statements is incorrect?

Options:
A Companion cells help in maintaining pressure gradients in the sieve tubes.
B Phloem parenchyma stores food material.
C Bast fibres are generally absent in the primary phloem but are found in secondary phloem.
D Phloem causes movement of organic substance and minerals only in one direction from leaves to stem and roots.

The correct answer is:
Phloem causes movement of organic substance and minerals only in one direction from leaves to stem and roots.

Solution:
Phloem causes movement of organic substance and minerals in bidirectional manner from leaves to stem and roots and from roots to stem and leaves.

Topic: Biology, Anatomy of Flowering Plants, NEET
Which of the following statements is INCORRECT?

Options:
A The pioneer community in hydrosere are phytoplanktons.
B The climax community remains stable even if environment changes.
C Both hydrarch and xerarch successions lead to mesic conditions.
D As succession proceeds, the number and type of animals and decomposers changes.

The correct answer is:
The climax community remains stable even if environment changes.

Solution:
The flora-fauna population that remains stable and survive in balance with each other and their habitat is referred to as climax community. Climax community is the last and final stage of ecological succession. It stays relatively unchanged until the environment changes by events like fire or anthropogenic interference.

Topic: Biology, Ecosystem, NEET
Which of the following statements is INCORRECT?

Options:
A The process of decomposition is anaerobic.
B Decomposition rate is slow if detritus is rich in lignin and chitin.
C Decomposition rate is fast if detritus is rich in sugars.
D Degradation of humus by microbes is called mineralization.

The correct answer is:
The process of decomposition is anaerobic.

Solution:
Detritus is the dead organic material which includes the parts or bodies of dead organisms and their faecal matter. These organic contents are broken down to inorganic substances by the process called decomposition. It is brought about by decomposers. Decomposition is a mainly an oxygen dependent process and its rate is dependent on chemical composition and climatic factors. Temperature and moisture play an important role in rate of decomposition. Enough supply of oxygen and proper moisture accelerates the decomposition process. If the detritus contains lignin chitin, tannins and cellulose , the decomposition rate decreases.

Topic: Biology, Ecosystem, NEET
Which of the following statements is incorrect?

Options:
A
$\mathrm{Fe}^{2+}$ ion also gives blood red colour with $\mathrm{SCN}^{-}$ion.

B
$\mathrm{Fe}^{3+}$ ion also gives blood red colour with $\mathrm{SCN}^{-}$ion.

C
On passing $\mathrm{H}_2 \mathrm{~S}$ into $\mathrm{Na}_2 \mathrm{ZnO}_2$ solution a white ppt of $\mathrm{ZnS}$ is formed.

D
Cupric ion reacts with excess of ammonia solution to give deep blue colour of $\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+}$ ion.

The correct answer is:
$\mathrm{Fe}^{2+}$ ion also gives blood red colour with $\mathrm{SCN}^{-}$ion.

Solution:
Only $\mathrm{Fe}^{3+}$ ions give blood red colouration with $\mathrm{SCN}^{-}$ions.
$$
\mathrm{Fe}^{3+}+\mathrm{SCN}^{-} \longrightarrow \begin{gathered}
{[\mathrm{Fe}(\mathrm{SCN})]^{2+}} \\
\text { (dark red) }
\end{gathered}
$$

Topic: Chemistry, Coordination Compounds, JEE Main, JEE Main 2013 (22 Apr Online)
Which of the following statements is incorrect ?

Options:
A In $K_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]$, the ligand has satisfied only the secondary valency of ferric ion.
B In $\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]$, the ligand has satisfied both primary and secondary valencies of ferric ion.
C In $\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$, the ligand has satisfied both primary and secondary valencies of ferrous ion.
D In $\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right] \mathrm{SO}_4$, the ligand has satisfied only the secondary valency of copper.

The correct answers are:
In $\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$, the ligand has satisfied both primary and secondary valencies of ferrous ion., In $\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right] \mathrm{SO}_4$, the ligand has satisfied only the secondary valency of copper.

Solution:
$\text { In } \mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right] \text {, }$
the ligand are negative which is present in coordination spheres shows a dual behaviour. It may satisfied both primary & secondary valencies while neutral ligand satisfied only secondary valencies.

Topic: Chemistry, Coordination Compounds, JEE Main
Which of the following statements is incorrect

Options:
A $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}$ reacts with alco. $\mathrm{KOH}$ to form $\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$
B $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}$ when treated with metallic sodium gives ethane
C $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}$ when treated with sodium ethoxide forms diethyl ether
D $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}$ with $\mathrm{AgCN}$ forms ethyl isocyanide

The correct answers are:
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}$ reacts with alco. $\mathrm{KOH}$ to form $\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$, $\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}$ when treated with metallic sodium gives ethane

Solution:
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{Br}+$ alc. $\mathrm{KOH} \rightarrow \mathrm{C}_2 \mathrm{H}_4+\mathrm{H}_2 \mathrm{O}+\mathrm{KBr}$
$\mathrm{C}_2 \mathrm{H}_3 \mathrm{Br}+2 \mathrm{Na}+\mathrm{B}^{+}+\mathrm{C}_2 \mathrm{H}_5 \rightarrow \mathrm{C}_2 \mathrm{H}_5-\mathrm{C}_2 \mathrm{H}_5+2 \mathrm{NaBr}$

Topic: Chemistry, Haloalkanes and Haloarenes, JEE Main
Which of the following statements is incorrect

Options:
A Enzymes are in colloidal state
B Enzymes are catalysts
C Enzymes can catalyse any reaction
D Urease is an enzyme

The correct answer is:
Enzymes can catalyse any reaction

Solution:
Enzyme Catalysis - These are catalysts in the living system. Enzymes are substances which by their presence, alter the rate of any biological event. The are mainly proteins, and enzyme action is structure specific.
Enzyme catalysis is the increase in the rate of a chemical reaction by the active site of a protein. The protein catalyst (enzyme) may be part of a multi-subunit complex, and/or may transiently or permanently associate with a Cofactor (e.g. adenosine triphosphate). Catalysis of biochemical reactions in the cell is vital due to the very low reaction rates of the uncatalysed reactions. A key driver of protein evolution is the optimization of such catalytic activities via protein dynamics.
Enzymes are macromolecular biological catalysts. These are highly selective catalysts greatly accelerating both the rate and specificity of metabolic reactions. All enzymes are insoluble since they exist in the colloidal state.
Urease is an enzyme that catalyzes the hydrolysis of urea, forming ammonia and carbon dioxide.
Hence, option 3 is correct.

Topic: Chemistry, Surface Chemistry, JEE Main
Which of the following statements is incorrect?

Options:
A Pure sodium metal dissolves in liquid ammonia to give blue solution
B $\mathrm{NaOH}$ reacts with glass to give sodium silicate
C Aluminium, reacts with excess $\mathrm{NaOH}$ to give $\mathrm{Al}(\mathrm{OH})_3$
D $\mathrm{NaHCO}_3$ on heating gives $\mathrm{Na}_2 \mathrm{CO}_3$

The correct answer is:
Aluminium, reacts with excess $\mathrm{NaOH}$ to give $\mathrm{Al}(\mathrm{OH})_3$

Solution:
Aluminium being amphoteric reacts with aqueous alkalies with the evolution of $\mathrm{H}_2$ gas.
$2 \mathrm{Al}(s) +2 \mathrm{NaOH}(a q)+6 \mathrm{H}_2 \mathrm{O}(l) \longrightarrow 2 \mathrm{Na}^{+}\left[\mathrm{Al}(\mathrm{OH})_4\right]^{-}(a q)+3 \mathrm{H}_2(g) \uparrow$
sodium tetrahydroxoaluminate (III).

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET, NEET 2011 (Mains)
Which of the following statements is incorrect?

Options:
A Viroids lack a protein coat
B Viruses are obligate parasites
C Infective constituent in viruses is the protein coat
D Prions consist of abnormally folded proteins

The correct answer is:
Infective constituent in viruses is the protein coat

Solution:
Viruses are obligate parasites (holoparasites) i.e. they cannot complete its life-cycle without exploiting a suitable host. Viruses are also called Nucleoprotein i.e. they have only genetic material (nucleic acids) enclosed within a capsid (protein coat). But, the infective constituent of a virus is its genetic material i.e., DNA or RNA. Only genetic material enters into the host cell, the protein coat remains outside the host cell.

Viroids lacks the protein coat and have only the genetic material (RNA). Prions are infectious proteins.

Topic: Biology, Biological Classification, NEET, NEET 2019 (All India)
Which of the following statements is incorrect?

Options:
A Pure sodium metal dissolves in liquid ammonia to give blue solution
B $\mathrm{NaOH}$ reacts with glass to give sodium silicate
C Aluminium, reacts with excess $\mathrm{NaOH}$ to give $\mathrm{Al}(\mathrm{OH})_3$
D $\mathrm{NaHCO}_3$ on heating gives $\mathrm{Na}_2 \mathrm{CO}_3$

The correct answer is:
Aluminium, reacts with excess $\mathrm{NaOH}$ to give $\mathrm{Al}(\mathrm{OH})_3$

Solution:
Aluminium being amphoteric reacts with aqueous alkalies with the evolution of $\mathrm{H}_2$ gas.
$2 \mathrm{Al}(s) +2 \mathrm{NaOH}(a q)+6 \mathrm{H}_2 \mathrm{O}(l) \longrightarrow 2 \mathrm{Na}^{+}\left[\mathrm{Al}(\mathrm{OH})_4\right]^{-}(a q)+3 \mathrm{H}_2(g) \uparrow$
sodium tetrahydroxoaluminate (III).

Topic: Chemistry, p Block Elements (Group 13 & 14), JEE Main
Which of the following statements is incorrect about $\mathrm{G}_0$ phase?

Options:
A Mitosis occurs after $\mathrm{G}_0$ phase.
B Cell enters $\mathrm{G}_0$ phase due to non-availability of mitogens.
C Cell volume keeps on increasing during this phase.
D Cell metabolism occurs continuously in $\mathrm{G}_0$ phase.

The correct answer is:
Mitosis occurs after $\mathrm{G}_0$ phase.

Solution:
$G_0$ phase is the stage of inactivation of cell cycle due to non-availability of mitogens and energy rich compounds. The cells in this phase remain metabolically active and usually grow in size assuming particular shape (cell differentiation). Cell enters $\mathrm{G}_0$ phase from a cell cycle checkpoint in the $G_1$ phase. $G_1$ phase checkpoint takes the key decision whether the cell should divide, delay division or enter resting stage. Cells then remain in $G_0$ phase until there is a reason for them to divide.

Topic: Biology, Cell Cycle and Cell Division, AIIMS, AIIMS 2018 (26 May)
Which of the following statements is incorrect about $\mathrm{G}_0$ phase?

Options:
A Mitosis occurs after $G_0$ phase.
B Biocatalysts can be used to exit $\mathrm{G}_0$ phase.
C Cell volume keeps on increasing during this phase.
D Cell metabolism occurs continuously in $\mathrm{G}_0$ phase.

The correct answer is:
Mitosis occurs after $G_0$ phase.

Solution:
$G_0$ phase is the stage of inactivation of cell cycle due to non-availability of mitogens and energy rich compounds. The cells in this phase remain metabolically active and usually grow in size assuming particular shape (cell differentiation). Cell enters $G_0$ phase from a cell cycle checkpoint in the $G_1$ phase. $G_1$ phase checkpoint (restriction point) takes the key decision whether the cell should divide, delay division or enter resting stage. Cells then remain in $G_0$ phase until there is a reason for them to divide. Several biocatalysts can help a cell in $\mathrm{G}_0$ phase to proceed through cell division when required.

Topic: Biology, Cell Cycle and Cell Division, AIIMS, AIIMS 2012
Which of the following statements is incorrect about reproductive health?

Options:
A STDs are reported to be very high among persons in the age group of 15-24 years.
B MTP has a significant role in decreasing the population though it is not meant for that purpose.
C Females infected with STD may often be asymptomatic and hence, may remain undetected for long.
D The reasons for infertility cannot be psychological.

The correct answer is:
The reasons for infertility cannot be psychological.

Solution:
The diseases which are transmitted through sexual intercourse are known as Sexually Transmitted Diseases. The incidence of STDs are reported to be very high among persons in the age group of 15-24 years. Early symptoms of most of these are minor and include itching, fluid discharge, slight pain, swellings, etc., in the genital region. Infected females may often be asymptomatic and hence, may remain undetected for long. Infertility is the condition in which couples are unable to produce children in spite of unprotected sexual co-habitation. The reasons for this could be many-physical, congenital, diseases, drugs, immunological or even psychological. Intentional or voluntary termination of pregnancy before full term is called medical termination of pregnancy. MTP has a significant role in decreasing the population though it is not meant for that purpose.

Topic: Biology, Reproductive Health, NEET
Which of the following statements is incorrect for antibiotics?

Options:
A An antibiotic must be a product of metabolism.
B An antibiotic is a synthetic substance produced as a structural analogue of naturally occurring antibiotic.
C An antibiotic should promote the growth or survival of microorganisms.
D An antibiotic should be effective in low concentrations.

The correct answer is:
An antibiotic should promote the growth or survival of microorganisms.

Solution:
An antibiotic should not promote growth or survival of microorganisms such as bacteria, fungi, algae because antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. They are produced in nature by soil bacteria and fungi.

Topic: Chemistry, Chemistry in Everyday Life, JEE Main, JEE Main 2023 (25 Jan Shift 1)
Which of the following statements is incorrect for ethylene dichloride and ethylidene chloride?

Options:
A These are structural isomers
B Both of these yields same product on reaction with alcoholic KOH solution
C Both of these yields same product on treatment with aqueous KOH solution
D Both of these yields same product on reduction

The correct answer is:
Both of these yields same product on treatment with aqueous KOH solution

Solution:

Topic: Chemistry, Haloalkanes and Haloarenes, JEE Main
Which of the following statements is INCORRECT?

I. Human kidneys can produce urine nearly six times more concentrated than the initial filtrate formed.

II. An increase in body fluid volume can switch on the osmoreceptors and stimulate ADH.

III. Substances like glucose, amino acids, Na+, etc., in the filtrate, are reabsorbed actively by the renal tubule whereas the nitrogenous wastes are absorbed by passive transport

IV. Each kidney has nearly one million complex tubular structures called nephrons which are the functional units.

Options:
A I and II
B III and IV
C I, II and III
D II, III and IV

The correct answer is:
I and II

Solution:
Kidneys are the main organs of excretion. Each kidney contains around one million nephrons that take part in the formation of urine and thus these are regarded as functional units. Urine formation involves three steps: ultrafiltration, tubular reabsorption, and tubular secretion. Ultrafiltration produces around 180 liters of filtrate per day but the urine produced is only 1.5 liters. This means that around 99% of filtrate is reabsorbed by the kidneys. Counter current mechanisms and hormones like ADH plays an important role in this process. ADH is an antidiuretic hormone that acts on DCT and bring about reabsorption of water and thus amount of water loss through urine is reduced.

Topic: Biology, Excretory Products and their Elimination, NEET
Which of the following statements is incorrect?
(i) In octahedral complexes, t2g orbitals posses low energy as compared to eg orbitals
(ii) In octahedral complexes, eg orbitals possess low energy as compared to t2g orbitals
(iii) In tetrahedral complexes, t2g orbitals posses high energy as compared to eg orbitals

Options:
A (ii) only
B (iii) only
C (i) and (ii)
D (i) and (iii)

The correct answer is:
(ii) only

Solution:
In octahedral complexes, t2g orbitals possess low energy as compared to eg orbitals while in tetrahedral complexes t2g orbitals possess high energy as compared to eg orbitals.

Topic: Chemistry, Coordination Compounds, JEE Main
Which of the following statements is incorrect regarding physissorptions ?

Options:
A
It occurs because of vander Waal's forces.

B
More easily liquefiable gases are adsorbed readily.

C
Under high pressure it results into multi molecular layer on adsorbent surface.

D
Enthalpy of adsorption $\left(\Delta \mathrm{H}_{\text {adsorption }}\right)$ is low and positive.

The correct answer is:
Enthalpy of adsorption $\left(\Delta \mathrm{H}_{\text {adsorption }}\right)$ is low and positive.

Solution:
Enthalpy of adsorption regarding physissorption is not positive and it is negative.

Topic: Chemistry, Surface Chemistry, JEE Main, JEE Main 2009
Which of the following statements is incorrect regarding sex determination in animals?

Options:
A Grasshoppers, male = autosomes +Â XO , female = autosomes +Â XX
B Drosophila, males = autosomes +Â XY , female = autosomes +Â XX
C Birds, females = autosomes +Â ZW , males = autosomes +Â ZZ
D Insects (XO type), all sperms = one set of autosomes + X

The correct answer is:
Insects (XO type), all sperms = one set of autosomes + X

Solution:
In some insects which show XO type of sex determination female carries autosomes and XX chromosomes and male carries autosomes and XO (single X chromosome) , i.e. male has 1 chromosome less than female. Example - Grasshopper (female carries 34 chromosomes and male carries 33 chromosomes) . In males 50% sperms carry one set of autosomes and one X chromosome, while remaining 50% sperms carry only one set of autosomes but no sex chromosome.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which of the following statements is incorrect regarding the phosphorus cycle?

Options:
A Phosphates are the major form of phosphorus reservoir
B Phosphorus solubilising bacteria facilitate the release of phosphorus from organic remains
C There is appreciable respiratory release of phosphorus into atmosphere
D It is sedimentary cycle

The correct answer is:
There is appreciable respiratory release of phosphorus into atmosphere

Solution:
Phosphorous cycle is a sedimentary cycle. The natural reservoir of phosphorous is rock which contains phosphorous in the form of phosphates.

Utilisation and Addition: Small amount of phosphate is always added to soil solution through weathering of rocks.
i) It is absorbed by the roots of the plants.
ii) Herbivores and other animals obtain this element from plants.
iii) Phosphorus solubilising bacteria facilitate the release of phosphorus from organic remains.
iv) Phosphorous released in the process becomes available for reutilization of plants.

Difference from gaseous cycle:
i) Inputs of phosphorous through rainfall are much smaller.
ii) No respiratory release of phosphorous into atmosphere.

Topic: Biology, Ecosystem, NEET, NEET 2020 (Phase 2)
Which of the following statements is incorrect with respect to sickle cell anaemia?

Options:
A Homozygous individuals for HbA show the diseased character.
B Heterozygous individuals are affected as well as carriers.
C Homozygous individuals for HbS remain unaffected.
D Homozygous individuals for HbS exhibit sickle cell trait.

The correct answer is:
Homozygous individuals for HbS exhibit sickle cell trait.

Solution:
Sickle cell anaemia is an autosomal recessive disease. This disease is controlled by a pair of alleles: HbA (normal dominant allele) and HbS (affected recessive allele).
Both male and female have either of the three genotypes:
1. HbA HbA: Normal phenotype.
2. HbA HbS: Normal phenotype.
3. HbS HbS: Diseased phenotype.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which of the following statements is invalid–

Options:
A the more stable the carbocation the faster it is formed
B propyl cation changes to more stable isopropyl carbonation by 1,2 shift of a hydrogen
C isopropyl chloride reacts with sodium ethoxide to form 1- ethoxypropane
D propyl halides reacts with sodium ethoxide to form 1- ethoxypropane

The correct answer is:
isopropyl chloride reacts with sodium ethoxide to form 1- ethoxypropane

Solution:
2° halides have greater tendency for elimination then substitution due to steric hindrance. Thus with C2H5ONa+ give mainly alkene as major product.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
Which of the following statements is not a fallacy?

Options:
A pâ§~~p⇒q
B ~pâ§q⇒p
C ~p⇒pâ¨q
D ~pâ¨~pâq

The correct answer is:
~p∨~p⇒q

Solution:
A Option A is true only if p is true and ~p⇒q is false which is never possible hence A is a fallacy
B p∧q is a subset of p hence p∧q⇒ p is a tautology hence ~p∧q⇒p is a fallacy
C p is subset of p∨q hence p⇒p∨q is tautology hence ~p⇒p∨q is a fallacy
D Option D is the negation of option A hence D is a tautology

Topic: Mathematics, Mathematical Reasoning, JEE Main
Which of the following statements is not a tautology?

Options:
A pâ§qâ§r⇒~pâ¨~qâ¨r
B pâ§qâ§r⇒~pâ§~qâ¨r
C pâ§~qâ§r⇒~pâ¨qâ¨r
D pâ§qâ§~râr

The correct answer is:
p∧q∧~r⇒r

Solution:
p∧q∧r is subset of r, so p∧q∧r is a subset of ~p∨~q∨r. Hence, p∧q∧r⇒~p∨~q∨r is a tautology.
Similarly, p∧q∧r⇒~p∧~q∨r is a tautology because p∧q∧r is a subset of ~p∧~q∨r
Similarly, p∧~q∧r is a subset of ~p∨q∨r. Hence, p∧~q∧r ⇒~p∨q∨r is a tautology
p∧q∧~r⇒r is false if p is true, q is true and r is false. Hence, p∧q∧~r⇒r is not a tautology

Topic: Mathematics, Mathematical Reasoning, JEE Main
Which of the following statements is not applicable to electrolytic conductors

Options:
A New products show up at the electrodes
B Ions are responsible for carrying the current
C Show a positive temperature coefficient for conductance
D A single stream of electrons flows from cathode to anode

The correct answer is:
A single stream of electrons flows from cathode to anode

Solution:
In electrolytic conductors, a single stream of electrons flow from cathode to anode.

Topic: Chemistry, Electrochemistry, JEE Main
Which of the following statements is not correct?

Options:
A Proteins are polyamides formed from amino acids
B Except glycine, all other amino acids show optical activity
C Natural proteins are commonly made up of L-isomer of amino acids
D In α -amino acids, -NH2 and -COOH groups are attached to different carbon atoms

The correct answer is:
In α -amino acids, -NH2 and -COOH groups are attached to different carbon atoms

Solution:
In Î± -amino acids, -NH2 and -COOH groups are attached to the same carbon atoms, .

Topic: Chemistry, Biomolecules, JEE Main