Quantitative Analysis of Organic Compounds

IMPORTANT

Quantitative Analysis of Organic Compounds: Overview

This topic covers concepts such as Quantitative Analysis of Organic Compounds, Estimation of Carbon and Hydrogen, Reactions for Estimation of Carbon and Hydrogen, Setup for Estimation of Carbon and Hydrogen, Estimation of Nitrogen, Dumas Method, etc.

Important Questions on Quantitative Analysis of Organic Compounds

MEDIUM
IMPORTANT

In Carius method of estimation of halogens, 250 mg of an organic compound gave 141 mg of AgBr. The percentage of bromine in the compound is : (atomic mass Ag = 108; Br = 80)

EASY
IMPORTANT

Carius method is used to estimate which of the following compounds?

MEDIUM
IMPORTANT

Carius method is used for the estimation of halogen. 0.24 g of an organic compound gave 0.36 g of silver bromide. Percentage of bromine present in the compound is
 

MEDIUM
IMPORTANT

Describe the setup for Carius method for the mass of halogens.

MEDIUM
IMPORTANT

In quantitative analysis of carbon and hydrogen in an organic compound, the mass of water produced is determined by passing the mixture through a weighed U-tube containing anhydrous calcium chloride.

MEDIUM
IMPORTANT

In quantitative analysis of carbon and hydrogen in an organic compound, let the mass of organic compound be m g, mass of water and carbon dioxide produced be m1 and m2 g respectively. The percentage of carbon is given as:

 

MEDIUM
IMPORTANT

In the quantitative analysis of carbon and hydrogen in an organic compound, the organic compound is burnt in the presence of excess of oxygen and copper(II) oxide to form carbon dioxide and _____ (water /  hydrogen peroxide) respectively.

MEDIUM
IMPORTANT

Explain the quantitative analysis of carbon and hydrogen in an organic compound.

EASY
IMPORTANT

In which of the following methods the organic compound yields nitrogen gas by heating it with copper(II) oxide in the presence of carbon dioxide gas.

EASY
IMPORTANT

Traces of nitrogen oxides formed, if any, are reduced to nitrogen by passing the gaseous mixture over a heated _____.

EASY
IMPORTANT

The nitrogen containing organic compound, when heated with copper oxide in an atmosphere of carbon dioxide, yields free nitrogen in addition to carbon dioxide and water.

EASY
IMPORTANT

How the apparatus arranged in Kjeldahl experiment.

EASY
IMPORTANT

List all the apparatus used in Kjeldahl experiment.

HARD
IMPORTANT

Explain the procedure of the combustion tube used in the Dumas method.

HARD
IMPORTANT

Explain the preparation of carbon dioxide in the CO2 generator used in Dumas method.

HARD
IMPORTANT

What are components used in the setup for Dumas method?