| 1 |
Which acid is used for etching designs on copper plates? |
- A. H<sub>2</sub>SO<sub>4</sub>
- B. HNO<sub>3</sub>
- C. HCl
- D. CH<sub>3</sub>COOH
|
| 2 |
Which one is used for alkaline batteries? |
- A. NaOH
- B. Ca(OH)<sub>2</sub>
- C. KOH
- D. Mg(OH)<sub>2</sub>
|
| 3 |
Stearic acid present in |
- A. Apple
- B. Fats
- C. Urine
- D. Grapes
|
| 4 |
The colour of litmus paper in strong acidic solution. |
- A. Red
- B. Blue
- C. Yellow
- D. Colourless
|
| 5 |
A reaction between an acid and base produce. |
- A. Salt and water
- B. Salt and gas
- C. Salt and acid
- D. Salt and bases
|
| 6 |
Acid reacting with metal sulphides, liberate gas. |
- A. Oxygen
- B. Hydrogen
- C. Hydrogen Sulphide
- D. Hydrogen Oxide
|
| 7 |
Which one of the mineral acid. |
- A. HCl
- B. H<sub>2</sub>SO<sub>4</sub>
- C. HNO<sub>3</sub>
- D. All of these
|
| 8 |
The colour of litmus in a strong basic solution become. |
- A. Yellow
- B. Blue
- C. Red
- D. Colourless
|
| 9 |
A neutral salt is not composed of. |
- A. Metallic ion
- B. Non metallic anion
- C. Anion of base
- D. Anion of acid
|
| 10 |
The reaction between an acid and a base produces. |
- A. Salts and water
- B. Salt and gas
- C. Salt and an acid
- D. Salt and an base
|
