Fsc Chemistry Unit 10 Solved MCQs Past Papers Class 12

Fsc chemistry unit 10 Alkyl Halides 12th class unit wise MCQs. All MCQs are collected from past Board papers of intermediate. Download in pdf alkyl halides chapter class 12.

Fsc Chemistry Unit 10 Solved MCQs

Alkyl Halides MCQs from past papers 2nd-year chemistry

For Mechanisms, the first step involved is the same. (MLN. GI, 2015) (GRW. BWP. GII, 2017)
(LHR. GI, DGK. GI, 2018)
(A) E, and E2
(B) Ez and SN2
(C) SN, and SN2
(D) El and SN

The most reactive Alkyl halide is: (SGD. GI, 2014)
(A) Alkyl iodide
(B) Alkyl Bromide
(C) Alkyl fluoride
(D) Alkyl Chloride

SN 2 Reactions can be carried out with. (SWL. 2014)(SWL, 2015)(SWL. 2016)(DGK. GII, BWP. GI, 2017)(RWP. GL.(SGD. GI, DGK. GI, MLN. GII, 2017)
(A) Primary alkyl halide
(B) Secondary alkyl halide
(C) Tertiary alkyl halide
(D) All of these

Chemistry 12th Chapter 10

……… is not a Nucleophile: (MLN. GII, DGK. GI, DGK. GII, BWP, 2014/SGD. GHI, I BWP, DGK. GI, SWL. 2015) (FBD. GI, 2017) (FBD. SGD. GII, MLN. GII, 2018)
(A) H20
(C) BF3
(D) NH3

Elimination Bimolecular reactions involve: (GRW, LHR, BWP, 2014)(MLN. GII, 2015)(DGK. GII, 2016)
(A) Second order Kinetics
(B) First order Kinetics
(C) Third order Kinetics
(D) Zero-order kinetics

Sy2 Mechanism involves. (GRW.GII, 2015)
(A)1st order kinetics
B) 2nd order kinetics
(C) 3rd order kinetics
(D)Zero order kinetics

The rate of E, reaction depends upon: (SWL. 2014) (SGD. GII, RWP. 2018)
(A) The concentration of substrate
(B) The concentration of nucleophile
(C) The concentration of substrate as well as nucleophile
(D) None of the above

Cyanogen chloride reacts with ethyl magnesium bromide to give. (LHR. GII, 2014)
(B) CH3CH Br
(C) CH10

Which compound is formed, when CH3OH react with CH3 – Mg – Br (FBD. GII, 2014)
(A) Ethane
(B) Methane
(C) Ethanol
(D) Acetone

The reactivity order of alkyl halides for a particular alkyl group is: (SGD, 2014)(GRw, LHR, 2015)
(A) Flouride > Chloride > Bromide > iodide
(B) Chloride > Bromide > Flouride > iodide

Grignard’s reagent is reactive due to:
(A) the presence of halogen atom
(C) the polarity of C-Mg bond

(LHR, SGD, BWP, 2015)(AJK, 2016)(LHR. GI, 2017)
(B) the presence of Mg atom
(D) none of the above

Which one of following is best nucleophile? (SGD, GI, 2016)
(A) H,0
(B) NH3
(C) С,Н,0

For which mechanisms, the first step involved in the same : (BWP. GI, 2018)
(A) E, and E
(B) E, and SN2
(C) Sp1 and E2
(D) E, and SNI

Which one of the following is not a nucleophile; (AJK. 2018)
(A) BC13
(B) NH3
(C) H2S
(D) H20


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