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Chemistry MCQs for NEET — Practice Questions with Answers

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Isobutyl chloride is:

CH₃CH₂CH₂CH₂Cl

(CH₃)₂CHCH₂Cl

CH₃CH₂CHClCH₃

(CH₃)₃C-Cl

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Explanation

(b) It should contain (CH₃)2CH- group to be named as iso.

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IUPAC name of, CH₃CH(OH)CH₂CH₂COOH is:

4-hydroxypentanoic acid

1-carboxy-3-butanoic acid

1-carboxy-4-butanol

4-carboxy-2-butanol

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Explanation

(a) Follow IUPAC rules.

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IUPAC name of the compound, ClCH₂CH₂COOH is:

3-chloropropanoic acid

2-chloropropanoic acid

2-chloroethanoic acid

chlorosuccinic acid

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Explanation

(a) Follow IUPAC rules.

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In IUPAC suffix name of -COX is:

oyl halide

halo carbonyl

carbamoyl

none of these

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Explanation

(a) Follow IUPAC rules.

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IUPAC name of C₆H₅CN is:

phenyl nitrile

benzonitrile

benzyl nitrile

phenyl cyanide

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Explanation

(b) Follow IUPAC rules.

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A reagent suitable for the determinatin of N-terminal residue of a peptide is

p-toluene sulphonyl chloride

2,4-dinitrophenyl hydrazine

carboxypeptidase

2,4-dinitro fluorobenzene

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Explanation

(d) 2,4-dinitro fluorobenzene is called Sanger's reagent. When this reagent reacts with amino group of peptide chain, it form 2,4-dinitrophenyl derivatives which on hydrolysis form DNP derivatives of amino acids.

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The dihedral angle between two C-H bonds in the staggered conformation of ethane is

60 $°$

180 $°$

0 $°$

120 $°$

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Isomers of a substance must have the same

structural formula

physical formula

chemical properties

molecular formula

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Explanation

(d) Two or more compounds having the same molecular but different physical, chemical properties and structural formula are called isomers.

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But-2-ene exhibits cis-trans-isomerism due to

rotation around C₂-C₃ double bond

rotation around C₃-C₄sigma bond

rotation around C₁-C₂ bond

restricted rotation around C=C bond

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Explanation

Due to presence of >C=C< in butene-2, it shows restricted rotation. Hence, give two types of arrangements around the space of >C=C< as cis and trans-forms.

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How many stereoisomers does this molecule have?

CH₃CH=CHCH₂CHBrCH₃

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Frequently Asked Questions

Yes. You can attempt every Chemistry question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.