Which of the following is true about oxygen?

(a)

Completely burning gas

(b)

Partially burning gas

(c)

Doesn’t support burning

(d)

Supports burning

Aerated water contains

(a)

air

(b)

oxygen

(c)

carbon dioxide

(d)

nitrogen

Solvay process is a method to manufacture

(a)

lime water

(b)

aerated water

(c)

distilled water

(d)

sodium carbonate

Carbon dioxide with water changes

(a)

blue litmus to red

(b)

red litmus to blue

(c)

blue litmus to yellow

(d)

doesn’t react with litmus

Which of the following is known as azote?

(a)

Oxygen

(b)

Nitrogen

(c)

Sulpher

(d)

Carbon dioxide