| 1 |
Lactic acid founds in: |
- A. Citrus fruits
- B. Sour milk
- C. Rancid Butter
- D. Apple
|
| 2 |
According to the Lewis concept acid is a substance which can. |
- A. Donate a proton
- B. Donate a pair of electron
- C. Accept a proton
- D. Accept a pair of electron.
|
| 3 |
What is the POH of a 0.02 M Ca(OH)<sub>2</sub>? |
- A. 1.698
- B. 1.397
- C. 12.31
- D. 12.61
|
| 4 |
When acid reacts with sulphites and Bi sulphates which gas is evolved? |
- A. H2
- B. CO<sub>2</sub>
- C. SO<sub>2</sub>
- D. NH<sub>3</sub>
|
| 5 |
Who proved that the presence of hydrogen as the main constituent of all acids. |
- A. Lavoisier
- B. Humphrey Davy
- C. Dalton
- D. Arrhenius
|
| 6 |
Water of crystallization is responsible for. |
- A. Melting points of crystals2
- B. Boiling point of crystal
- C. Shape of crystal
- D. Transition points of crystals
|
| 7 |
_______ is the king of chemicals. |
- A. Hydrochloric acid
- B. Nitric Acid
- C. Sulphuric acid
- D. Phosphoric acid
|
| 8 |
Which salt is used for the manufacture of detergents, pulp and paper? |
- A. NaCl
- B. Na<sub>2</sub>CO<sub>3</sub>
- C. Na<sub>2</sub>SiO<sub>3</sub>
- D. NaCl
|
| 9 |
Which acid is used for etching glass? |
- A. HF
- B. HCl
- C. HBr
- D. HI
|
| 10 |
Acid reacting with metal sulphides, liberate gas. |
- A. Oxygen
- B. Hydrogen
- C. Hydrogen Sulphide
- D. Hydrogen Oxide
|