Carius method is used for the estimation of fluorine as ______ is water soluble.

1.  Hydrogen fluoride

2.  Sodium fluoride

3.  Silver fluoride

4.  Silver nitrate

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4
Correct Answer :

Silver fluoride


Explanation :
No Explanation available for this question

Compounds having the same molecular formula but differing in their structure are called as

1.  Polymers

2.  Allotropes

3.  Isomers

4.  Derivatives

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4
Correct Answer :

Isomers


Explanation :
No Explanation available for this question

Copper sulphate crystal are of ______ colour

1.  Blue

2.  Green

3.  White

4.  Black

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4
Correct Answer :

Blue


Explanation :
No Explanation available for this question

0.2585 g of an organic compound containing iodine was heated with excess of strong nitric acid and silver nitrate in a Carius tube. The precipitate of silver iodide was filtered, washed and dried. Its weight was found to be 0.3894 g. Calculate the percentage of iodine in the compound

1.  81.40%

2.  78%

3.  90%

4.  86.24%

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4
Correct Answer :

81.40\%


Explanation :
No Explanation available for this question

Molecular formula of benzene is

1.  C6H5

2.  C6H16

3.  C6H7

4.  C6H6

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4
Correct Answer :

C6H6


Explanation :
No Explanation available for this question

The homologous series consist of homologues which are arranged in the increasing order of their

1.  Atomic mass

2.  Nuclear mass

3.  Molecular mass

4.  Molecular number

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4
Correct Answer :

Molecular mass


Explanation :
No Explanation available for this question

To determine the boiling point, powdered liquid is filled in

1.  Capillary tube

2.  Boiling tube

3.  Fusion tube

4.  Thiele's tube

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4
Correct Answer :

Fusion tube


Explanation :
No Explanation available for this question

Which of the following species has electron releasing (or + I inductive) effect

1.  -NO2

2.  -COOH

3.  (CH3)2CH-

4.  C6H-5

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4
Correct Answer :

(CH3)2CH-


Explanation :
No Explanation available for this question

The presence of nitrogen in an organic compound is confirmed when the complex form has

1.  Prussian blue colour

2.  Red colour

3.  Orange colour

4.  Black colour

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4
Correct Answer :

Prussian blue colour


Explanation :
No Explanation available for this question

Sugar is obtained from its saturated solution by

1.  Sublimation

2.  Simple distillation

3.  Crystallization

4.  Chromatograohy

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4
Correct Answer :

Crystallization


Explanation :
No Explanation available for this question
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