| 1 |
Which metal oxide is insoluble in water |
- A. MgO
- B. CaO
- C. SrO
- D. BaO
|
| 2 |
Chile saltpeter has the chemical formula |
- A. NaNO3
- B. KNO3
- C. Na2B4O7
- D. Na2CO3.H2O
|
| 3 |
Which elements are deposited at the cathode during the electrolysis of brine in diaphragm cell |
- A. H<sub>2</sub>
- B. Ba
- C. Ra
- D. Rn
|
| 4 |
The oxides of beryllium are |
- A. Basicity
- B. Rancidity
- C. Amphoteric
- D. none of all
|
| 5 |
Which is called milk of magnesia. |
- A. MgCO3
- B. Mg(OH)2
- C. MgSO4
- D. MgCl2
|
| 6 |
Which element is present in chlorophyll |
|
| 7 |
Oxides of alkaline earth metal are |
- A. Acidic
- B. Basic
- C. Neutral
- D. Amphoteric
|
| 8 |
------------- does not belong to Alkaline-Earth metals |
|
| 9 |
Which one does not belong to the alkaline earth metals |
|
| 10 |
Ca Mg3 (SiO3)2 is the composition of. |
- A. Dolomite
- B. Gypsum
- C. Calcite
- D. Asbestos
|