| 1 |
Ca Mg3 (SiO3)2 is the composition of. |
- A. Dolomite
- B. Gypsum
- C. Calcite
- D. Asbestos
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| 2 |
Magnesium metal does not burn in the jar of |
- A. N2
- B. O2
- C. Ne
- D. N2 and O2
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| 3 |
Which is more basic |
- A. RbOH
- B. NaOH
- C. KOH
- D. Li OH
|
| 4 |
Dolomite is a carbonate of |
|
| 5 |
Which one does not belong to the alkaline earth metals |
|
| 6 |
Chile saltpeter has the chemical formula |
- A. NaNO3
- B. KNO3
- C. Na2B4O7
- D. Na2CO3.H2O
|
| 7 |
Which is called milk of magnesia. |
- A. MgCO3
- B. Mg(OH)2
- C. MgSO4
- D. MgCl2
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| 8 |
Which gas is evolved when CO2 is passed through KO2. |
- A. O2
- B. CO
- C. O3
- D. None of these
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| 9 |
Which ion will have the maximum value of heat of hydration. |
- A. Na+
- B. Ca+
- C. Ba+2
- D. Mg+2
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| 10 |
Which one of the following elements has the same oxidation number in all its known compounds. |
- A. Beryllium
- B. Nitrogen
- C. Sulphur
- D. Chorine
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