Q. No.
| Assertion (A): | CCl4 doesn't give precipitate of AgCl on heating with AgNO3. |
| Reason (R): | CCl4 is a non-polar molecule. |
| 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. |
In the Lassaigne’s test for nitrogen in an organic compound, the Prussian blue colour is obtained due to the formation of:
The latest technique for isolation, purification and separation of organic compounds is -
| 1. | Crystallisation | 2. | Distillation |
| 3. | Sublimation | 4. | Chromatography |
\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I}+\mathrm{KOH}(\mathrm{aq}) \rightarrow \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{KI} \)
1. Nucleophilic substitution reaction
2. Elimination reaction
3. Addition reaction
4. Electrophilic substitution reaction
IUPAC name of the given compound is :
1. 3-Phenylpropane
2. Phenyl-1-butane
3. 2-Benzylethane
4. Propyl benzene
The method that can be used to separate two compounds with different solubilities in a solvent is-
1. Distillation
2. Isolation
3. Fractional crystallization
4. Filtration
Which purification method is suitable for a liquid that decomposes upon boiling?
1. Fractional distillation
2. Steam distillation
3. Simple distillation
4. Distillation under reduced pressure
Lassaigne's test can detect:
1. Nitrogen, Sulphur, Halogens
2. Nitrogen, Cyanides, Sulphur
3. Sodium, Sulphur, Halogens, Phosphorus
4. Nitrogen, Sulphur, Halogens, Phosphorus
Halogen in an organic compound that can be detected by -
| 1. | Duma's method | 2. | Carius method |
| 3. | Kjeldahl's method | 4. | Chromatography |
Nitric acid is added to sodium extract before adding silver nitrate for testing halogens because:
1. Nitric acid reduces sulphide
2. Nitric acid decomposes NaCN and Na2S
3. Nitric acid oxidises the organic compound
4. Nitric acid acts as a dehydrating agent
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