NEET Alkanes, Alkenes and Alkynes - Chemical Properties Practice Questions With Solutions

NEET Chemistry Alkanes, Alkenes and Alkynes - Chemical Properties Practice Questions

Biology Physics

Question 1.

Predict the major product \('P'\) in the following sequence of reactions -

A

B

C

D

Question 2.

Which one of the following compounds does not decolourize bromine water?

A

B

C

D

Question 3.

Baeyer's reagent is:

AAcidic potassium permanganate solution

BAcidic potassium dichromate solution

CCold, dilute, aqueous solution of potassium permanganate

DHot, concentrated solution of potassium permanganate

Question 4.

For the given reaction:

'P' is:

A

B

C

D

Question 5.

The major product P formed in the following reaction sequence is:

A

B

C

D

Question 6.

The compound obtained by addition of water to an alkyne having more than two carbons, in the presence of \(\mathrm{HgSO_4 }\) and dilute \(\mathrm{H_2SO_4}\) at 333K, is:

AA vicinal diol

BAn aldehyde

CAn alcohol

DA ketone

Question 7.

Compound X on reaction with \(O_3\) followed by \(\mathrm{Zn/ H_2O}\) gives formaldehyde and 2-methyl propanal as products. The compound X is :

APent-2-ene

B3-Methylbut-1-ene

C2-Methylbut-1-ene

D2-Methylbut-2-ene

Question 8.

An alkene on ozonolysis gives methanal as one of the products. Its structure is:

A

B

C

D

Question 9.

The alkane that gives only one monochloro product on chlorination with \(\text{Cl}_2\) in presence of diffused sunlight is-

A2,2,-Dimethylbutane

BNeopentane

Cn-Pentane

DIsopentane

Question 10.

What is the correct order of acidity among the following compounds?

A\(\small\mathrm{CH \equiv CH > CH_3 - C \equiv CH }~ \mathrm{ > CH_2 = CH_2 > CH_3 - CH_3}\)

B\(\small\mathrm{CH \equiv CH > CH_2 = CH_2 }~ \mathrm{ > CH_3 - C \equiv CH > CH_3 - CH_3}\)

C\(\small\mathrm{CH_3 - CH_3 > CH_2 = CH_2 }~ \mathrm{ > CH_3 - C \equiv CH > CH \equiv CH }\)

D\(\small\mathrm{ CH_2 = CH_2 > CH_3 - CH_3 } ~\mathrm{ > CH_3 - C \equiv CH > CH \equiv CH}\)

Question 1.

X and Y in the above-mentioned reaction are respectively:

AX = 2–Butyne; Y = 3–Hexyne

BX = 2-Butyne; Y = 2-Hexyne

CX = 1-Butyne; Y = 2-Hexyne

DX = 1-Butyne; Y = 3–Hexyne

Question 2.

2,3-dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

A

{({CH}_{3})}_{2} CH - \underset{{CH}_{3}}{\underset{|}{CH}} - CH = {CH}_{2}

B

{({CH}_{3})}_{3} C - C H = C H_{2}

C

{({CH}_{3})}_{2} C = C H - C H_{2} - C H_{3}

D

{({CH}_{3})}_{2} C H - C H_{2} - C H = C H_{2}

Question 3.

HCl with an alkene X reacts in accordance with Markovnikov’s rule to give 1-Chloro-1-methylcyclohexane. The structure of alkene (X) is:

A

B

C(1) and (2)

D

Question 4.

When subjected to ozonolysis, which compound results in the formation of the given molecule?

A

B

C

D

Question 5.

The major product in the above mentioned reaction is:

1.		2.
3.		4.

A

B

C

D

Question 6.

Predict the product C obtained in the following reaction of butyne-1.
\( CH_{3}CH_{2}-C\equiv CH \ + \ HCl \)
\(\ \xrightarrow[]{} \ B \ \xrightarrow[]{HI} \ C\)

A

B

C

D

Question 7.

The reaction of HBr with propene in the presence of peroxide gives:

A3-bromopropane

BAllyl bromide

Cn-propyl bromide

DIsopropyl bromide

Question 8.

The compound

on reaction with NaIO₄ in the presence of KMnO₄ gives:

ACH₃COCH₃

BCH₃COCH₃ + CH₃COOH

CCH₃COCH₃ + CH₃CHO

DCH₃CHO + CO₂

Question 9.

On ozonolysis, the alkene that gives the following product is:

A

B\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}=\mathrm{CHCH}_2 \mathrm{CH}_3\)

C\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}=\mathrm{CHCH}_3\)

D

Question 10.

The reagent used to convert propene to 1-propanol is:

AH₂O, H₂SO₄

BB₂H₆, H₂O₂, OH^–

CHg(OAc)₂, NaBH₄/H₂O

DAq. KOH

NEET Alkanes, Alkenes and Alkynes - Chemical Properties Practice Questions With Solutions

NEET Chemistry Alkanes, Alkenes and Alkynes - Chemical Properties Practice Questions

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

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