Optically Inactive Amines
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Q.
The product C in the following reaction is CH3CH2Cl NaCN−−−−−→ (A) Ni/H2−−−−−→ (B) Acetic anhydride−−−−−−−−−−−−−→ (C)
CH3CH2CH2NHCOCH3
CH3CH2CH2NH2
CH3CH2CH2CONHCOCH3
CH3CH2CH2CONHCH3
Q. Which of the following is a likely product of the alkylation of ammonia and amines with alkyl halide?
- Primary amine
- Secondary amine
- Tertiary amine
- All of the above
Q. During the acylation of an aliphatic primary amine, which of the following is replaced by an acyl group?
- NH2 group
- One H atom of NH2 group
- Both H atom of NH2 group
- Alkyl group of the amine
Q.
A : मोललता ताप पर अनाश्रित सांद्रता पद है।
R : Molality is the number of moles of solute present in per kilogram of solution.
R : मोललता प्रति किलोग्राम विलयन में उपस्थित विलेय के मोलों की संख्या होती है।
This section contains 1 Assertion-Reason type question, which has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
इस खण्ड में 1 कथन-कारण प्रकार का प्रश्न है, जिसमें 4 विकल्प (a), (b), (c) तथा (d) दिये गये हैं, जिनमें से केवल एक सही है।
A : मोललता ताप पर अनाश्रित सांद्रता पद है।
R : Molality is the number of moles of solute present in per kilogram of solution.
R : मोललता प्रति किलोग्राम विलयन में उपस्थित विलेय के मोलों की संख्या होती है।
- Both (A) and (R) are true and (R) is the correct explanation of (A)
(A) तथा (R) दोनों सही हैं तथा (R), (A) का सही स्पष्टीकरण है - Both (A) and (R) are true but (R) is not the correct explanation of (A)
(A) तथा (R) दोनों सही हैं लेकिन (R), (A) का सही स्पष्टीकरण नहीं है - (A) is true but (R) is false
(A) सही है लेकिन (R) गलत है - (A) is false but (R) is true
(A) गलत है लेकिन (R) सही है
Q. Acylation of amines with acyl halides proceeds by which of the following reaction?
- electrophilic addition
- electrophilic substitution
- nucleophilic addition
- nucleophilic substitution
Q.
Which of the following options is obtained as major product at the end of the above reaction sequence?
Which of the following options is obtained as major product at the end of the above reaction sequence?
- 3, 4, 5−Tribromoaniline
- 2, 6−Dibromoaniline
- 2, 4−Dibromoaniline
- 2, 4, 6−Tribromoaniline
Q. Which of the following is a likely product of the alkylation of ammonia and amines with alkyl halide?
- Primary amine
- Secondary amine
- Tertiary amine
- All of the above
Q.
The product C in the following reaction is CH3CH2Cl NaCN−−−−−→ (A) Ni/H2−−−−−→ (B) Acetic anhydride−−−−−−−−−−−−−→ (C)
CH3CH2CH2CONHCOCH3
CH3CH2CH2CONHCH3
CH3CH2CH2NH2
CH3CH2CH2NHCOCH3
Q. During the acylation of an aliphatic primary amine, which of the following is replaced by an acyl group?
- One H atom of NH2 group
- Both H atom of NH2 group
- Alkyl group of the amine
- NH2 group
