| 1 |
Which element is present in chlorophyll |
|
| 2 |
Oxides of alkaline earth metal are |
- A. Acidic
- B. Basic
- C. Neutral
- D. Amphoteric
|
| 3 |
Which one of the following is not an alkali metal |
- A. Francium
- B. Caesuym
- C. Rubidium
- D. Radium
|
| 4 |
Chile saltpeter has the chemical formula |
- A. NaNO3
- B. KNO3
- C. Na2B4O7
- D. Na2CO3.H2O
|
| 5 |
Nelson's cell is used to prepare |
- A. NaOH
- B. Na<sub>2</sub>CO<sub>3</sub>
- C. Na metal
- D. NaCl
|
| 6 |
Setting of Plaster of Paris is accompanied with |
- A. Hydrogen bonding
- B. Hydration
- C. Dehydration
- D. None of these
|
| 7 |
Which one does not belong to the alkaline earth metals |
|
| 8 |
The most metallic elements from the following is |
- A. Arsenic
- B. Oxygen
- C. Antimony
- D. Bismuth
|
| 9 |
Which is called milk of magnesia. |
- A. MgCO3
- B. Mg(OH)2
- C. MgSO4
- D. MgCl2
|
| 10 |
The oxide of beryllium is |
- A. Acidic
- B. Basic
- C. Amphoteric
- D. None of these
|
