| 1 |
Grease stains from clothes are removed by sing. |
- A. Ammonium nitrate
- B. Aluminium hydroxide
- C. Ammonium hydroxide
- D. Aluminum chloride
|
| 2 |
Word "acid" derived from: |
- A. Urdu
- B. English
- C. Latin
- D. Greek
|
| 3 |
Acids turn |
- A. Blue litmus red
- B. Red litmus blue
- C. Blue litmus green
- D. Blue litmus blue
|
| 4 |
The water of crystallization is responsible for the. |
- A. Melting points of crystals
- B. Boiling points of crystals
- C. Shapes of crystals
- D. Transition point of crystals
|
| 5 |
The product of Lewis acid-base reaction is called adduct. The bond between the adduct species is. |
- A. Ionic
- B. Covalent
- C. Metallic
- D. Co-ordinate covalent
|
| 6 |
_______ is the king of chemicals. |
- A. Hydrochloric acid
- B. Nitric Acid
- C. Sulphuric acid
- D. Phosphoric acid
|
| 7 |
All acids turn blue litmus. |
- A. Red
- B. Blue
- C. Pinck
- D. White
|
| 8 |
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
|
| 9 |
Which of one the following is Lewis base? |
- A. BF3
- B. H+
- C. NH3
- D. Ag+
|
| 10 |
The word acid is derived from the. |
- A. Greek word
- B. Latin word
- C. English word
- D. Arabic word.
|