Chapter 10 Test 5 Chemistry
Chapter 10 Test 5 Chemistry Book XII
Here is another set of MCQ's form chapter 10. Read questions carefully
1) Which of the following is an electrophile?
A) B) NH3
C) ROH D) BF3
2) Alkyl halides give reactions
A) Electrophilic substitution
B) Nucleophilic substitution
C) Electrophilic addition
D) Nucleophilic addition
3) When Ammonia reacts with excess of alkyl halides gives
A) Primary amine B) Secondary amine
C) Tertiary amine D) Mixture of amines
4) Nucleophilic substitution reactions are represented by
A) E1 B) SN
C) ROH D) RCHO
5) SN reactions are classified into types
A) 4 B) 3
C) 2 D) 1
6) SN2 reactions occur in
A) Primary alkyl halide B) Secondary alkyl halide
C) Tertiary alkyl halide D) All of these
7) Which SN reaction occurs in two steps?
A) SN1 B) SN2
C) Both D) None of these
8) In SN2 reactions, two reactants are involved in the rate determining step while these reactions occur in
A) Two steps B) Three steps
C) One step D) Four steps
9) Which one of them is organometallic compound?
A) RMgX B) RX
C) ROH D) RCHO
10) When Grignard reagent reacts with formaldehyde to yield
A) CH3OH B) C2H5OH
C) CH3COCH3 D) C3H8
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