Properties of Baking Soda

Q.

The chemical formula of bleaching powder is…….

Q.

What will happen when Chlorine gas is passed through dry slaked lime?

Q.

Sodium carbonate decahydrate is the chemical name of ________ soda. (baking/ washing)

Q.

Bleaching powder is represented by the formula

1. ${\text{CaO.CaCl}}_{\text{2}}$

2. ${\text{CaCl}}_2$

3. ${\text{CaCl}}_{\text{2}}{\text{.CaCO}}_{\text{3}}$

4. $\text{Ca(OCl)Cl}$

Q. What happens when you keep blue and red litmus paper into the solution of baking soda?

1. Red litmus turns blue, blue litmus remains unchanged
2. Both the litmus paper remains unchanged
3. Blue litmus turns red, red litmus turns blue
4. Blue litmus turns red, red litmus remains unchanged

Q. In the solution of baking soda, the colour of red litmus paper _____.

1. turns blue
2. remains unchanged
3. turns green
4. turns orange

Q. Baking soda is manufactured by passing carbon dioxide through saturated sodium carbonate solution in water.

1. False
2. True

Q.

Chemical formula of baking soda is_________?

Q. Petrol is a product obtained by refining crude oil.

1. True
2. False

Q. The colour of sodium bicarbonate is _______.

1. white
2. yellow
3. pale green
4. pale pink

Q.

Red litmus turns blue when the solution is:

1. acidic

2. basic

3. amphoteric

4. neutral