Fill in the Blanks Oxygen is Used in ___________The Food to Get _______.

Fill in the blanks

Oxygen is used in ___________the food to get _______.

Fill in the Blanks

Oxygen is used in burning the food to get energy.

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Chapter 6: Air and Atmosphere - Objective Type Questions 1

Chapter 6 Air and Atmosphere
Objective Type Questions 1 | Q 1.08

Answer the question put against the following constituents of air :

Oxygen : What is the percentage proportion of oxygen in air ? Why is oxygen called active air.

Briefly state the importance of Water vapour.

Write fully balanced equation for the following :

CO₂ + H₂O →

Give a reason why two different rare (inert) gases find application in advertisement signs and fluorescent bulbs.

What is the percentage of nitrogen in air?

Mention one necessary condition for the combustion to take place.

Write the percentage of the gases present in air.

Match the following.

Nitrogen	Respiration in living animals
Oxygen	Fertilizer
Carbon dioxide	Refrigerator
Dry ice	Fire extinguisher

How will you prove that air supports burning?

Mountaineers carry oxygen cylinders with them because ______.

Fill in the Blanks Oxygen is Used in _____The Food to Get _.