Q. No.
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Clemmensen reduction of a ketone is carried out in the presence of which of the following?
1. - with
2.
3. and as catalyst
4. Glycol with
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and can be distinguished chemically by-
1. Benedict test
2. Iodoform test
3. Tollen's reagent test
4. Fehling solution test
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The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D)
1. B > A > D > C
2. B > D > C > A
3. A > B > C > D
4. A > C > B >D
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| 1. |  + H2 in presence of Pd-BaSO4 |
| 2. |  + CO + HCl in presence of anhydrous AlCl3 |
| 3. |  + Zn/Hg and conc. HCl |
| 4. |  + CrO2Cl2 in CS2 followed by H3O+ |
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2. Cyclopentanonyl cation
3. Cyclopentanonyl radical
4. Cyclopentanonyl biradical
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Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagents is
1. A Grignard reagent
2. Hydrazine in presence of feebly acidic solution
3. Hydrocyanic acid
4. Sodium hydrogen sulphite
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