Cannizzaro’s reaction is not given by:
1. | 2. | ||
3. | HCHO | 4. | CH3CHO |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe compound below is treated with a concentrated aqueous KOH solution. The products obtained are:
1. | |
2. | |
3. | |
4. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the most suitable reagent for the below mentioned conversion?
\(\mathrm{CH_{3} — CH = CH — CH_{2} — \overset{\Large{O} \\~ ||}{C}—CH_{3} \rightarrow}\)
\(\mathrm{CH_{3} — CH = CH — CH_{2} — \overset{\Large{O} \\~ ||}{C}—OH}\)
1. Tollens' reagent
2. Benzoyl peroxide
3. \(\mathrm I_{2}\) and NaOH solution
4. Sn and NaOH solution
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCarbonyl compound is treated with--- in Clemmensen reduction .
1. Zinc amalgam + HCl
2. Sodium amalgam + HCl
3. Zinc amalgam + nitric acid
4. Sodium amalgam +
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following compounds do not undergo aldol condensation?
(a) | (b) | ||
(c) | (d) |
Options are as follows:
1. a, b
2. b, d
3. b, c
4. c, d
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe conversions can be used for Clemmensen reduction are:
a. Benzaldehyde into benzyl alcohol.
b. Cyclohexanone into cyclohexane.
c. Benzoyl chloride into benzaldehyde.
d. Benzophenone into diphenyl methane.
1. | a and b | 2. | b and c |
3. | c and d | 4. | b and d |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThrough which of the following reactions number of carbon atoms can be increased in the chain?
a. Grignard reaction
b. Cannizzaro’s reaction
c. Aldol condensation
d. HVZ reaction
Choose the correct option:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the example in Column I with the name of the reaction in Column II.
Column l (Example) |
Column ll (Reaction) |
A. | 1. Friedel-Crafts acylation |
B. | 2. HVZ reaction |
C. | 3. Aldol condensation |
D. | 4. Rosenmund Reaction |
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 3 | 1 | 4 | 2 |
3. | 3 | 4 | 1 | 2 |
4. | 4 | 1 | 3 | 2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the correct option based on statements below:
Assertion (A): | Aldehydes and ketones both react with Tollen’s reagent to form a silver mirror. |
Reason (R): | Both aldehydes and ketones contain a carbonyl group. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | (A) is false but (R) is true. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology