Q. No.Identify the conversions that are possible with Clemmensen reduction:
a. Benzaldehyde to benzyl alcohol.
b. Cyclohexanone to cyclohexane.
c. Benzoyl chloride to benzaldehyde.
d. Benzophenone to diphenylmethane.
1.
a and b
2.
b and c
3.
c and d
4.
b and d
Through 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)
Benzophenone can be obtained by:
a. Benzoyl chloride + Benzene
b. Benzoyl chloride + Diphenyl cadmium
c. Benzoyl chloride + Phenyl magnesium chloride
d. Benzene + Carbon monoxide
Choose the correct option
| 1. | (a, b) | 2. | (b, c) |
| 3. | (c, d) | 4. | (a, d) |
Match the common names given in Column I with the IUPAC names given in Column II.
| Column l (Common names) |
Column ll (IUPAC names) |
| A. Cinnamaldehyde | 1. Pentanal |
| B. Acetophenone | 2. Prop-2-enal |
| C. Valeraldehyde | 3. 1-Phenylethanone |
| D. Acrolein | 4. 3-Phenylprop-2-en-al |
Codes:
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 1 | 2 |
Match the acids given in Column I with their correct IUPAC names given in Column II and mark the appropriate option:
| Column l (Acids) |
Column ll (IUPAC names) |
| A. Phthalic acid | 1. Hexane-1,6-dioic acid |
| B. Glutaric acid | 2. Benzene-1,2-dicarboxylic acid |
| C. Succinic acid | 3. Pentane-1,5-dioic acid |
| D. Adipic acid | 4. Butane-1,4-dioic acid |
Codes:
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 2 | 1 |
Match the reactions given in Column-I with the suitable reagents given in Column-II.
| Column-l (Reactions) |
Column-ll
(Reagents)
|
||
| A. | Benzophenone → Diphenylmethane | I. | LiAlH4 |
| B. | Benzaldehyde → 1-Phenylethanol | II. | DlBAL-H |
| C. | Cyclohexanone → Cyclohexanol | III. | Zn(Hg)/Conc. HCl |
| D. | Phenyl benzoate → Benzaldehyde | IV. | CH3MgBr |
Codes:
| A | B | C | D | |
| 1. | II | III | IV | I |
| 2. | III | IV | I | II |
| 3. | I | IV | III | II |
| 4. | IV | III | II | I |
Match 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 |
Select the correct option based on the statements below:
| Assertion (A): | The geometry of formaldehyde molecule is planar. |
| Reason (R): | Formaldehyde molecule contains sp2 hybridized carbon atom. |
| 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. | Both (A) and (R) are False. |
Select the correct option based on statements below:
| Assertion (A): | Compounds containing —CHO group are easily oxidised to corresponding carboxylic acids. |
| Reason (R): | Carboxylic acids can be reduced to alcohol by treatment with LiAlH4. |
| 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. |
Select the correct option based on statements below:
| Assertion (A): | The α -hydrogen atom in carbonyl compounds is less acidic. |
| Reason (R): | The anion formed after the loss of the α -hydrogen atom is resonance stabilized. |
| 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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