Hydrogen and it's Compounds

Hydrogen and it's Compounds
Class:XI / Unit:9

1. The volume strength of 1.5 NH₂O₂ solution is :

4.8
8.4
8.8
5.2

2. Which of the following statements regarding hydrogen peroxide is/ are incorrect?

As aerating agent in production of sponge rubber
As an antichlor
For restoring white colour of blackened lead painting
All of the above

3. Water shows anomalous behavior between

0 to 4°C
0 to 5°C
4 to 10°C
0 to -4°C

4. What is the product of the reaction of H₂O₂ with Cl₂?

H₂O + HCl
HCl + H₂
O₂ + HOCl
HCl + O₂

5. Which of the following hydrides are generally nonstochiometric in nature?

Molecular Hydrides
Ionic Hydrides
Interstitial Hydrides
All the above

6. The freezing point of heavy water is

1°C
0°C
4°C
3.8°C

7. Pure H₂O₂ is :

Gas
Liquid
Solid
Semi – solid

8. Which of the following is very high for proton?

radius
charge
hydration energy
ionization potential

9. O-O-H bond angle in H₂O₂ is

97°
106°
120°
109°28′

10. Loss of hydrogen atoms by an element is called

hydrogenation
sublimation
oxidation
reduction