| 1 |
What is pOH of 0.01 M solution of HCl? |
1
4
12
13
|
| 2 |
What is pOH of 0.01 M solution of KOH? |
3
11
2
4
|
| 3 |
The base which is used in alkaline batteries is. |
NaOH
Al(OH)<sub>2</sub>
KOH
Mg(OH)<sub>2</sub>
|
| 4 |
The colour of litmus in a strong basic solution become. |
Yellow
Blue
Red
Colourless
|
| 5 |
Grease stains from clothes are removed by sing. |
Ammonium nitrate
Aluminium hydroxide
Ammonium hydroxide
Aluminum chloride
|
| 6 |
The color of Fe(OH)2 ppt is. |
White
Brown
Muddy green
Blue
|
| 7 |
Which one gas is liberated when alkalies react with ammonium salts? |
O<sub>2</sub>
CO<sub>2</sub>
H<sub>2</sub>
NH3
|
| 8 |
Which acid is used for food preservation? |
Hydrochloric acid
Benzoic acid
Sulphuric acid
Nitric acid.
|
| 9 |
_______ is the king of chemicals. |
Hydrochloric acid
Nitric Acid
Sulphuric acid
Phosphoric acid
|
| 10 |
_________ acid is used in lead storage batteries as electrolyte. |
CH<sub>3</sub>COOH
HCl
HNO<sub>3</sub>
H<sub>2</sub>SO<sub>4</sub>
|
| 11 |
Which acid is found in Ant sting? |
Citric Acid
Formic Acid
Uric Acid
Sulphuric acid
|
| 12 |
Acid reacting with metal sulphides, liberate gas. |
Oxygen
Hydrogen
Hydrogen Sulphide
Hydrogen Oxide
|
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