Chlorine

Q.

What do you understand by the term ‘rain water’?

Q. Which acid is used in the laboratory to remove the water vapour present in chlorine?

1. Sulphuric acid
2. Hydrochloric acid
3. Nitric acid
4. Sulphurus acid

Q.

Nitric acid stains the skin yellow.

1. True

2. False

Q. Concentrated acids and bases are corrosive in nature.

Q.

Formula for stannic phosphate

Q.

Calgon is chemically called as ______

1. Sodium polymeta phosphate

2. Sodium polymeta hydrate

3. Sodium carbonate

4. Sodium aluminium silicate

Q.

Is calamine carbonate ore?

Q. What is the chemical formula of potassium carbonate, sodium nitrate, magnisium hydrogen carbonate

Q. Who discovered chlorine gas ?

1. Joseph Priestley
2. Carl Wilhem Scheele
3. Humphrey Davy
4. Henry Moseley

Q.

Mention commercial use of sodium chloride.

Q. Which of the following has strongest interparticle forces at room temperature?

1. Nitrogen
2. Oxygen
3. Chlorine
4. Bromine

Q.

Write the formula of the following compound:

Lead acetate

Q. Identify the gas which is not present in free state in the nature and was used as a chief weapon in the first world war by Germany?

1. Chlorine
2. Hydrogen
3. Oxygen
4. Nitrogen

Q.

Who discovered chlorine gas ?

1. Joseph Priestley

2. Carl Wilhem Scheele

3. Humphrey Davy

4. Henry Moseley

Q. Which chlorine compound is excessively used in cooking every day?

1. Hydrogen chloride
2. Sodium chloride
3. Magnesium chloride
4. Aluminium chloride

Q. ________ atoms do not generally react with substances.

1. Nitrogen
2. Helium
3. Oxygen
4. Boron

Q. The number of molecules of water of crystallisation present in washing soda crystals is:
(a) five
(b) two
(c) ten
(d) seven

Q.

What is the chemical formula of ammonium chloride?

1. NH₃Cl
2. NH₄Cl
3. NHCl
4. NHCl₄