Which metal pollute the air of a big city?
A. Copper
B. Chromium
C. Lead
D. Cadmium
Everyday Science Mcqs
Potassium nitrate is used in__________?
Potassium nitrate is used in__________?
A. Medicine
B. Fertilizer
C. Salt
D. Glass
The gases used in different types of welding would include:__________?
The gases used in different types of welding would include:__________?
A. oxygen and hydrogen
B. oxygen, hydrogen, acetylene and nitrogen
C. oxygen, acetylene and argon
D. oxygen and acetylene
Which of the gas is not known as green house gas?
Which of the gas is not known as green house gas?
A. Methane
B. Nitrous oxide
C. Carbon dioxide
D. Hydrogen
Which of the following is a tissue?
Which of the following is a tissue?
A. Blood
B. Lungs
C. Kidney
D. pancreas
The chemical name of chalk is
The chemical name of chalk is
A. Sodium nitrate
B. Zinc sulfate
C. Sulphuric acid
D. Calcium carbonate
1 tonne = _____ kg?
1 tonne = _____ kg?
A. 100
B. 400
C. 1000
D. 4000
Main use of salt in diet is to : ___________?
Main use of salt in diet is to : ___________?
A. ease the process of cooking
B. increase the taste
C. produce small amount of hydrochloric acid required for digestion
D. inclease solubility of food particles in water
Rainbow is seen after rain because of hanging molecules of water which act as __________?
Rainbow is seen after rain because of hanging molecules of water which act as __________?
A. Lens
B. Prism
C. Mirror
D. Slabs
To measure the speed of an approaching car a police officer shines?
To measure the speed of an approaching car a police officer shines?
A. light waves on it
B. microwaves on it
C. radio waves on it
D. ultra high frequency waves on it