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

Which is an intermediate in Svl

Question # 2

Among the following, which one is nucleophile

Question # 3

Which of the following decides the reactivity of alkyl halides?

Question # 4

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

Question # 5

Which one of the following is not associated with SN2 mechanism

Question # 6

Which pair gives same dehydrohalogenation product

Question # 7

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

Question # 8

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

Question # 9

Which of the following is primary alkyl halide

Question # 10

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

Question # 11

The average bond energy of C-Br is

Question # 12

Which is a good nucleophile as well as a good leaving group?

Question # 13

Which of the following alkyl halides undergoes SN1 reaction fastest

Question # 14

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

Question # 15

The rate of E1 reaction depends upon

Question # 16

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

Question # 17

Alkyl halides are considered to be very reactive compounds towards nucleophiles, because

Question # 18

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

Question # 19

The Sl mechanism for the hydrolysis of an alkyl halide to an alcohol involves the formation of

Question # 20

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

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Prepare Complete Set Wise MDCAT Chemistry Chapter 14 Chemistry of Hydrocarbons Online Test MCQs Online With Answers


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 Chloroform (CHCl3) is?
A. Primary alkyl halide
B. Secondary alkyl halide
C. Tertiary alkyl halide
D. a liquid
2 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
3
To prepare ethane by Wurtz synthesis the suitable alkyl halide is
A. Ethyl iodide
B. any alkyl iodide
C. Ethyl chloride
D. Methyl bromide
4 The carbon atom of an alkyl group attached with halogen atom is called
A. Electrophile
B. Free redical
C. Nucleophile
D. Nucleophilic centre
5 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
6 Alkyl halides are considered to be very reactive compounds towards nucleophiles, because
A. The have an electrophilic carbon
B. They have an electrophilic carbon and a bad leaving group
C. They have an electrophilic carbon and a good laving group
D. They have a nucleophilic carbon and a good leaving group
7 Which isomer of C4H9Br will produce 2-methyl propane-2-ol on treatment with aqueous KOH
A. n-butyI bromide
B. Sec-butyI bromide
C. Isobutyl halide
D. Tertiary butyl chloride
8 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
9
The alkaline hydrolysis of bromoethane shown below gives alcohol as the product: H3C-CH2-Br-------H3C-CH2-OH
The reagent and the condition used in this reaction may be:
A. H20 at room temperature
B. KOH in alcohol
C. Ethanol. heat
D. Dilute NaOH(aq) warm
10 An alkyl halide reacts with NH3 to give
A. Amide
B. Cyanide
C. Amine
D. Aniline
11 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
12 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
13 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
14 Which one of the following is NOT a nucleophile
A. NH2+
B. BF3
C. H2O
D. CH3-
15 A mixture of 1-chloropropane and 2-chloro-propane when treated with alcoholic KOH, gives
A. Prop-2-ene
B. Isopropy lene
C. Propene
D. A mixture of prop-l-ene
16 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
17 SN2-reactions can be usually observed in
A. Primary alkylı halide
B. secondary alkyl halide
C. Tertiary alkyl halide
D. Both A. and B
18 Which of the following factors does not affect the SN1 rate is
A. Nucleophilicity of the attacking nucleophile
B. Stability of the carbonium ion
C. Solvent system
D. The nature of leaving group
19 Elimination unimolecular reactions involve
A. Second order kinetics
B. First order kinetics
C. Third order kinetics
D. Zero order kinetics
20 Which of the following is primary alkyl halide
A. IsopropyI halide
B. Sec-butyl halide
C. Tert-buryi halide
D. Neo-pentyl halide

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