MDCAT Chemistry Chapter 14 MCQ Test With Answer for (Hydrocarbons)

The students searching for Chapter 14 MCQs of Chemistry can easily access them from this platform. The preparatory phase of the entrance test holds significance for the students, and they have to do the maximum hard work to perform well in the entrance exam. The students should practice the online MCQs before appearing in the test.

The students searching for Chapter 14 MCQs of Chemistry can easily access them from this platform. The preparatory phase of the entrance test holds significance for the students, and they have to do the maximum hard work to perform well in the entrance exam. The students should practice the online MCQs before appearing in the test.

MCQ's Test For MDCAT Chemistry Chapter 14 Chemistry of Hydrocarbons Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 14 Chemistry of Hydrocarbons Online Test

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MDCAT Chemistry Chapter 14 Chemistry of Hydrocarbons Online Test

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Question # 1

For which mechanisms, the first step involved is the same

Question # 2

The rate of E1 reaction depends upon

Question # 3

Which of the following reactants will be required to form ethene from ethyl chloride

Question # 4

The reaction C2H5CI + aqueous KOH---------C2H5OH+ KCI is

Question # 5

Which of the following reactions does not involve formation of carbocation?

Question # 6

Which compound is obtained hy the elimination reaction on bromoethane?

Question # 7

Among the following, which one is nucleophile

Question # 8

Which of the following decides the reactivity of alkyl halides?

Question # 9

The carbon atom of an alkyl group attached with halogen atom is called

Question # 10

Which is an intermediate in SN1 reaction

Question # 11

Dehydrohalogenation of secondary butyI bromide will give

Question # 12

Which of the following is primary alkyl halide

Question # 13

The average bond energy of C-Br is

Question # 14

The species which are produced by heterolytic bond breaking and can act as electron pair donor

Question # 15

In an elimination reaction a more substituted alkene is formed due to the stability associated with

Question # 16

Out of monochloro, monobromo and mongiodo derivatives of ethane, the mos reactive compound towards nucleophilic substitution will be

Question # 17

SN2-reactions can be usually observed in

Question # 18

In elimination reaction i.e, in the formation of alkene, the reactivity of alkyl halide is in the order:

Question # 19

Correct order for the reactivity ofalkyl halide in S, reactions

Question # 20

The reagent for alkaline hydrolysis of ethyl bromide to form ethyl alcohol is

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In this topic,Student should be able to:

a) Classify the organic compounds.

b) Explain the types of bond cleavage, homolytic and heterolytic.

c) Suggest how cracking can be used to obtain more useful alkanes and alkenes of lower masses.

d) Discuss the types of reagents; nucleophile, electrophile and free radicals.

e) Explain isomerism; structural and cis-trans.

f) Discuss the functional group and nomenclature of organic compounds with reference to IUPAC names of Alkanes, Alkenes, Alcohols, Haloalkanes and Carboxylic acids.

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Sr. # Question Answer
1 The order of reactivitv of alksI halides towards nucleophile is

A. RI>RBr RF>RCI

B. RF>RCI>RBr>RI

C.RI>RBr> RCI>RE

D. RF>RBr>RCI>RI

2 An alkyl halide reacts with NH3 to give

A. Amide

B. Cyanide

C.Amine

D. Aniline

3 The species which are produced by heterolytic bond breaking and can act as electron pair donor

A. Free radicals

B. Cations

C.Nucleophiles

D. electrophile

4 Among the following, which one is nucleophile

A. H+

B. Ca2+

C.OH-

D. Na+

5 In nucleophilie substitution bimolecular reaction the order of reaction with respect to substrate

A. 2 order

B. 3 order

C.1st order

D. Zero order

6 SN2-reactions can be usually observed in

A. Primary alkylı halide

B. secondary alkyl halide

C.Tertiary alkyl halide

D. Both A. and B

7 An amine is produced in the following reaction
C2H5l+2NH3-------C2H5NH2 +NH4l. What is mechanism?

A. Electrophilic addition

B. Electrophilic substitution

C.Nucleophilic addition

D. Nucleophilic substitution

8 Chloroform (CHCl3) is?

A. Primary alkyl halide

B. Secondary alkyl halide

C.Tertiary alkyl halide

D. a liquid

9 Correct statement about Nucleophilic substitution bimolecular is

A. Transition state is formed

B. Inversion take place

C.It is two step reacticn

D. Both a &c

10 Which pair gives same dehydrohalogenation product

A.

I-Chlorobutane, 2-Chlorobutane

B. I-Chloropropane, 2-Chloropropane

C.I-Bromopentane. 3-Bromopentane

D. iso-butvl chloride. 2°- butyl chloride

11 Which of the following alkyl halides undergoes SN1 reaction fastest

A. Methyl chloride

B. Isobutyl chlorido

C.Ethy l chloride

D. Tertiary butyl chloride

12 For which mechanisms, the first step involved is the same

A. E1 and E2

B. E2 and SN2

C.E2 and E1

D. E1 and SN1

13 Out of monochloro, monobromo and mongiodo derivatives of ethane, the mos reactive compound towards nucleophilic substitution will be

A. C2H5Br

B. C2H5Cl

C.C2H5I

D. All are equally reactive

14 In the transition state of S2 mechanism reaction with alkyl halides, which of the following orbital hybridization is involved

A. sp³

B. sp

C.sp²

D. dsp³

15 In elimination reaction i.e, in the formation of alkene, the reactivity of alkyl halide is in the order:

A. CI>Br>I

B. I>Br>Cl

C.Br>CI>I

D. I>CI> Br

16 Which of the following is primary alkyl halide

A. IsopropyI halide

B. Sec-butyl halide

C.Tert-buryi halide

D. Neo-pentyl halide

17 Which compound is obtained hy the elimination reaction on bromoethane?

A. Butene

B. Ethene

C.Propene

D. Propane

18 The reaction C2H5CI + aqueous KOH---------C2H5OH+ KCI is

A. Electrophilic addition

B. Nucleophilic addition

C.Electrophilic substitution

D. Nucleophilic substitution

19 Reaction of ethyl bromide with ammonia

A.

Completes in a single step

B. Completes in two steps

C.Continues till N is left with no lone pair

D. is reversible

20 When purely alcoholic solution of sodium/potassiumhydroxide and halogenoalkanes are reacted an alkene is formed, what is the mechanism of reaction?

A. Elimination

B. Debromination

C.Dehydration

D. Reduction

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