| 1 |
Aluminium oxide is |
- A. Acidic oxide
- B. Baric oxide
- C. Amphoteric oxide
- D. None of these
|
| 2 |
Which one of following is used in cosmetics |
- A. Talc
- B. Asbestos
- C. Sodium sulphate
- D. Aluminium Sulphate
|
| 3 |
The shape of SiO2 IS |
- A. Tetrahedral
- B. Trigonal bipyramid
- C. Linear
- D. Cubic
|
| 4 |
Aluminum oxide is |
- A. acidic oxide
- B. basic oxide
- C. amphoteric oxide
- D. none of these
|
| 5 |
Ethyl alcohol on reacting with orthoboric acid form |
- A. Ethyl borate
- B. Boric acid
- C. Boron acetate
- D. Borax
|
| 6 |
The composition of white lead is |
- A. PbCO3.Ph(OH)2
- B. PbCO3.2Pb(OH)2
- C. 2PbCO3.Pb(OH)2
- D. PbCO3
|
| 7 |
Which is not used of Borax |
- A. Softening of water
- B. As medicine for washing eyes
- C. As flux in metallurgical operations
- D. To make quartz
|
| 8 |
The chief of aluminum is |
- A. Na<sub>3</sub>AlF<sub>6</sub>
- B. Al<sub>2</sub>O<sub>3</sub>.2H<sub>2</sub>O
- C. Al<sub>2</sub>O<sub>3</sub>
- D. Al<sub>2</sub>O<sub>3</sub>.H<sub>2</sub>O
|
| 9 |
Which is used in the leather industry |
- A. Borax
- B. Boric acid
- C. Boric oxide
- D. Tetra Boric acid
|
| 10 |
Chemical composition of colemanite is |
- A. Ca<sub>2</sub>B<sub>6</sub>O<sub>11</sub>. 5H<sub>2</sub>O
- B. CaB<sub>4</sub>O<sub>7</sub>. 4H<sub>2</sub>O
- C. Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>.4H<sub>2</sub>O
- D. CaNaB<sub>5</sub>O<sub>9</sub>. 8H<sub>2</sub>O
|