Assertion (A): CCl4 doesn't give precipitate of AgCl on heating with AgNO3.

Reason (R): CCl4 is a non-polar molecule.

1. A & R both are correct and R is the correct explanation of A.

2. A is correct but R is not correct.

3. A & R both are correct and R is not the correct explanation of A.

4. A & R, both are false

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Qualitative Analysis of Organic Compounds |
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In the Lassaigne’s test for nitrogen in an organic compound, the Prussian blue colour is obtained due to the formation of-

1. Na4[Fe(CN)6] 2. Fe4[Fe(CN)6]33. Fe2[Fe(CN)6] 4. Fe3[Fe(CN)6]4

Subtopic:  Qualitative Analysis of Organic Compounds |
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The latest technique for isolation, purification and separation of organic compounds is -

1. Crystallisation

2. Distillation

3. Sublimation

4. Chromatography

Subtopic:  Purification of Organic Compounds |
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CH3CH2I + KOH(aq)  CH3CH2OH + KI

The above reaction is an example of -

1. Nucleophilic substitution reaction

2. Elimination reaction

3. Addition reaction

4. Electrophilic substitution reaction

 

Subtopic:  Types of Reaction |
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IUPAC name of the given compound is

1. 3-Phenylpropane

2. Phenyl-1-butane

3. 2-Benzylethane

4. Propyl benzene

Subtopic:  Nomenclature |
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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 

Subtopic:  Purification of Organic Compounds |
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Method that can be used to purify the liquid that decomposes on boiling is

1) Fractional distillation

2) Distillation under reduced pressure

3) Steam distillation

4) Distillation

Subtopic:  Purification of Organic Compounds |
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Lassaigne's test can detect -

1. Nitrogen, Sulphur, Halogens

2. Nitrogen, Cyanides, Suphur

3. Sodium, Sulphur, Halogens, Phosphorus

4. Nitrogen, Sulphur, Halogens, Phosphorus

Subtopic:  Qualitative Analysis of Organic Compounds |
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Halogen in an organic compound that can be detected by -

1. Duma's method

2. Carius method

3. Kjedahl's method

4. Chromatography

Subtopic:  Purification of Organic Compounds |
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Nitric acid is added to sodium extract before adding silver nitrate for testing halogens because

1. Nitric acid reduces suphide

2. Nitric acid decomposes NaCN and Na2S

3. Nitric acid oxidises the organic compound

4. Nitric acid acts as a dehydrating agent

Subtopic:  Qualitative Analysis of Organic Compounds |
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