| 1 |
Which metal oxide is insoluble in water |
- A. MgO
- B. CaO
- C. SrO
- D. BaO
|
| 2 |
Which on eof the following alkaline earth metal form peroxide when heated with oxygen at 600 <sup>o</sup>C |
- A. Magnesium
- B. Calcium
- C. Strontium
- D. Barium
|
| 3 |
Which of the following compounds is used to make spray, which has fungicidal action. |
- A. BaSO4
- B. Na2CO3
- C. CaO
- D. CaSO4.2H2O
|
| 4 |
Which hydroxide decomposes on heating. |
- A. LiOH
- B. NaOH
- C. KOH
- D. CaOH
|
| 5 |
Which is more basic |
- A. RbOH
- B. NaOH
- C. KOH
- D. Li OH
|
| 6 |
The ore CaSO4.2H2O has the general name. |
- A. Gypsum
- B. dolomite
- C. Calcite
- D. Epsom salt
|
| 7 |
Which substance is used to lower the melting point of NaCl in Down's cell |
- A. CaCO3
- B. CaCl2
- C. MgSO4
- D. AlCl3
|
| 8 |
Which one of the following has lowest first ionization energy. |
|
| 9 |
The mineral CaSO<sub>4</sub>.2H<sub>2</sub>O has the general name |
- A. Dolomite
- B. Gypsum
- C. Calcite
- D. Epsom Salt
|
| 10 |
The element cesium bears resemblance with |
- A. Ca
- B. Cr
- C. Both of the above
- D. None of the above
|