1. First
2. Second
3. Hydration
4. Third
Second
1. Very reactive
2. Very inactive
3. Very volatile
4. None of these
Very reactive
1. Lithium
2. Aluminium
3. Calcium
4. Magnesium
Aluminium
1. The hydroxide, carbonate, nitrate decomposes to give the oxide on heating
2. It is the most electro-negative element of group IA
3. The hydrogen carbonate cannot be isolated as a stable solid
4. It forms a peroxide but not a superoxide
It forms a peroxide but not a superoxide
1. Hydrogen
2. Chlorine
3. Hydride
4. Nitogen
Chlorine
1. +4
2. +1
3. +2
4. +3
+2
1. Magesium
2. Calcium
3. Sodium
4. Potassium
Calcium
1. CO
2. CO2
3. CO32-
4. Cl2
CO2
1. Washing of lime
2. Quick lime
3. Milk of lime
4. None of these
Milk of lime
1. K2CO3 is unstable
2. K2CO3 is highly soluble in water
3. K2CO3 cannot be prepared by passing H2CO3
4. K2CO3 is less soluble than Na2CO3
K2CO3 is highly soluble in water