Introduction to Qualitative Analysis

Q.

__ analysis deals with the determination of the composition of a mixture.

Q.

State true or false:
Qualitative analysis in analytical chemistry deals with the quantities of different components of matter.

1. True

2. False

Q.

__ analysis deals with the identification of unknown substance in a given sample by chemical tests.

Q.

Sodium hydroxide is a strong alkali.

1. False

2. True

Q. __ analysis deals with the identification of unknown substance in a given sample by chemical tests

1. Cumulative

2. Qualitative

3. Individual
4. Quantitative

Q.

__ analysis deals with the determination of the composition of a mixture

1. Cumulative
2. Individual
3. Qualitative
4. Quantitative

Q. In identification of cations, colour and of the precipitate formed after reaction with alkali, are major identification factors.

1. solubility
2. atomic mass
3. size

Q. Sodium hydroxide is a stronger base than ammonium hydroxide.

1. False
2. True

Q. The sour taste of acids is due to which of the following ions?

1. Proton
2. Hydroxide
3. Chloride
4. Sodium

Q. Methyl orange changes its colour to _______ if the pH of the substance is greater than 7.

1. Red
2. Blue
3. Orange
4. Yellow