Formaldehyde on condensation in presence of gives
1. formose
2. fructose
3. maltose
4. xylose
In the following reaction, product 'P' is
1. RCOOH
2. RCHO
3.
4.
The compound that responds to Tollen's test is
1.
2.
3.
4.
, on hydrolysis will give
1.
2.
3.
4.
The reagent used for the separation of acetaldehyde from acetophenone is
1.
2.
3.
4.
Acetaldehyde gives orange coloured precipitate on treatment with
1. 2, 4-DNP
2.
3.
4. NaOH
Which of the following reagents converts to ?
1. aq. NaOH
2. Acidic
3.
4.
When treated with alkali and iodine, what substance will not give iodoform?
1. | Acetone | 2. | Ethanol |
3. | Diethyl ketone | 4. | isopropyl alcohol |
When benzene sulphonic acid and p-nitrophenol are treated with , the gases released respectively are:
1.
2.
3.
4.
Benzoyl chloride can be prepared from benzoic acid by reacing the former with:
1. Cl2, hv
2. SO2
3. SOCl2
4. Cl2, H2O