| 1 |
Grease stains from clothes are removed by sing. |
Ammonium nitrate
Aluminium hydroxide
Ammonium hydroxide
Aluminum chloride
|
| 2 |
The color of Fe(OH)2 ppt is. |
White
Brown
Muddy green
Blue
|
| 3 |
Which one gas is liberated when alkalies react with ammonium salts? |
O<sub>2</sub>
CO<sub>2</sub>
H<sub>2</sub>
NH3
|
| 4 |
Which acid is used for food preservation? |
Hydrochloric acid
Benzoic acid
Sulphuric acid
Nitric acid.
|
| 5 |
_______ is the king of chemicals. |
Hydrochloric acid
Nitric Acid
Sulphuric acid
Phosphoric acid
|
| 6 |
_________ 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>
|
| 7 |
Which acid is found in Ant sting? |
Citric Acid
Formic Acid
Uric Acid
Sulphuric acid
|
| 8 |
Acid reacting with metal sulphides, liberate gas. |
Oxygen
Hydrogen
Hydrogen Sulphide
Hydrogen Oxide
|
| 9 |
___________ is not mineral acid. |
HCl
CH<sub>3</sub>COOH
H<sub>2</sub>SO<sub>4</sub>
HNO<sub>3</sub>
|
| 10 |
Natural source of citric acid is: |
Rancid butter
Fats
Lemon
Sour milk
|
| 11 |
The acid which is called king of chemicals. |
Sulphuric Acid
Nitric Acid
Hydrochloric acid
Acetic acid
|
| 12 |
Acetic acid is used for: |
Elching designs
Clearing metals
Flavouring food
Making explosives
|
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