| 1 |
Which hydroxide decomposes on heating. |
- A. LiOH
- B. NaOH
- C. KOH
- D. CaOH
|
| 2 |
In Down's cell anode is made up of. |
- A. Iron
- B. Copper
- C. Graphite
- D. Platinum
|
| 3 |
The element cesium bears resemblance with |
- A. Ca
- B. Cr
- C. Both of the above
- D. None of the above
|
| 4 |
When carbon di oxide is bubbled through lime water, white precipitate is formed This precipitate is. |
- A. COCl2
- B. H2CO3
- C. CaO
- D. CaCO3
|
| 5 |
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
|
| 6 |
Which gas is evolved when CO2 is passed through KO2. |
- A. O2
- B. CO
- C. O3
- D. None of these
|
| 7 |
The word alkali is derived from which language |
- A. Arabic
- B. Greek
- C. French
- D. German
|
| 8 |
When water is added to plaster of paris, it changes to a hard mass. Its volume also expands upto |
|
| 9 |
Which element is present in chlorophyll |
|
| 10 |
Setting of Plaster of Paris is accompanied with |
- A. Hydrogen bonding
- B. Hydration
- C. Dehydration
- D. None of these
|