Which of the following reactions will not result in the formation of carbon-carbon bonds ?
1. Reimer-Tiemann reaction
2. Cannizaro reaction
3. Wurtz reaction
4. Friedel-Crafts acylation
Trichloroacetaldehyde, CCl3CHO reacts with chlorobenzene in presence of sulphuric acid and produces
Which one of the following on treatement with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid ?
(1)
(2)
(3)
(4)
Consider the following compounds :
The Correct decreasing order of their reactivity towards hydrolysis is :
(1) (ii) > (iv) > (iii) > (i)
(2) (i) > (ii) > (iii) > (iv)
(3) (iv) > (ii) > (i) > (iii)
(4) (ii) > (iv) > (i) > (iii)
A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of a-hydroxy acid. The carbonyl compound is :
(1) acetaldehyde
(2) acetone
(3) diethyl ketone
(4) formaldehyde
Self-condensation of two moles of ethyl acetate in the presence of sodium ethoxide yields :
(1) ethyl butyrate
(2) acetoacetic ester
(3) methyl acetoacetate
(4) ethyl propionate
Clemmensen reduction of a ketone is carried out in the presence of which of the following ?
1. Zn-Hg with HCl
2. LiAlH4
3. H2 and Pt as catalyst
4. Glycol with KOH
1. | 2. | ||
3. | 4. |
Predicts the products in the given reaction,
The reaction by which benzaldehyde cannot be prepared?