The product 'X' in the below mentioned reaction is:
1. | 2. | ||
3. | 4. |
The reaction between benzaldehyde and acetophenone in the presence of dilute NaOH is known as:
1. Cannizzaro's reaction
2. Cross Cannizzaro's reaction
3. Cross aldol condensation
4. Aldol condensation
An acid that forms an anhydride (X) on heating and an acid imide (Y) on strong heating with ammonia is:
1. | 2. | ||
3. | 4. |
The reactant 'A' in the below mentioned reaction is-
1. | Benzoyl chloride | 2. | Toluene |
3. | Acetophenone | 4. | Benzoic acid |
A yellow precipitate with iodine and alkali is given by:
(i). Methyl acetate
(ii). Acetamide
(iii). 2-Hydroxypropane
(iv). Acetophenone
1. (i), and (ii)
2. (ii), and (iii)
3. (iii), and (iv)
4. (iv), and (i)
Consider the following reaction:
The product 'A' is:
1.
2.
3.
4.
Match the compounds given in List -I with their characteristic reactions given in List -II. Select the correct option.
List – I (Compounds) | List – II (Reactions) | ||
(a) | CH3CH2CH2CH2NH2 | (i) | Alkaline hydrolysis |
(b) | CH3C≡CH | (ii) | With KOH (alcohol) and CHCl3 produce a bad smell. |
(c) | CH3CH2COOCH3 | (iii) | Gives white ppt. with ammoniacal AgNO3 |
(d) | CH3CH(OH)CH3 | (iv) | With Lucas' reagent cloudiness appears after 5 minutes. |
Options :
(a) | (b) | (c) | (d) | |
1. | (iii) | (ii) | (i) | (iv) |
2. | (ii) | (iii) | (i) | (iv) |
3. | (iv) | (ii) | (iii) | (i) |
4. | (ii) | (i) | (iv) | (iii) |
The correct order of reactivity of phenyl magnesium bromide (PhMgBr) with the following
compounds will be:
I | II | III |
1. I > II > III
2. III > II > I
3. II > I > III
4. I > III > II
Ethyl benzoate can be prepared from benzoic acid by using:
1. Propyl alcohol
2. Ethyl alcohol and dry HCl
3. Ethyl chloride
4. Sodium ethoxide
RCHO and NH2NH2 react with each other in an acidic medium. The product obtained is:
1. RCON3
2. RCH=NH
3. RCH2NH2
4. RCH=NNH2