Which blood group is universal receiver?

A. Group a
B. Group b
C. Group ab
D. Group o

How many layers of Atmosphere?

A. 2
B. 3
C. 4
D. 5

At what temperature does silver melt?

A. 275 °c
B. 327 °c
C. 961.8 °c
D. 100 °c

Find the PH of a 0.001 M solution of Nitric acid HNO3?

A. 2
B. 3
C. 4
D. 5

How many hearts an Octopus has?

A. 10
B. 8
C. 5
D. 3

Percentage of water in an apple is__________?

A. 84%
B. 90%
C. 66%
D. None of these

When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?

A. Visible
B. Transparent
C. Invisible
D. Opaque

Most soluble in water is:__________?

A. Camphor
B. Sulphur
C. Common salt
D. Sugar

Which insect can survive without a head for one or more weeks?

A. Ladybird
B. Bee
C. Cockroach
D. Termite

Which of the following is not a macromolecule ?

A. Sand
B. Haemoglobin
C. Diamond
D. Maltose