Question

Choose the correct answer from the options given below.

1. Which of the following cycle includes ammonification as a step?
a. Oxygen
b. Nitrogen
C. Carbon
d Water

2. Which gas is prepared using potassium chlorate or hydrogen peroxide?
a. Oxygen
b. Nitrogen
C. Chlorine
d. Helium

3. Which of the following is a decomposition reaction?
a. Reaction between hydrogen and sulphur
b. Heating hydrogen
C. Heating calcium carbonate
d. Burning magnesium in air

4. The rate of evaporation depends on
a. Temperature b. Humidity
c. Movement of air d. All of these

5. Which of the following is used in making fertilizers and explosives?
d. Iron
c. Aluminium
b. Hydrogen
a. Nitrogen​

Answer 1

1. Carbon
2. Helium
3. Burning magnesium in air
4. Temperature
5. Aluminium

Answer 2

Answer:

1. Nitrogen

2. Oxygen

3. Reaction between hydrogen and sulphur

4. Humidity

5. Aluminum

listen guys: 3rd one and 5th one I have a doubt ok...

hope it helps you