PG TRB Chemistry Online Test - 5

Question: 21

The major compound found in human kidney stones is

(A) Calcium carbonate

(B) Calcium phosphate

(C) Uric acid

(D) Calcium oxalate

Question: 22

A mixture of sand and naphthalene can be separated by

(A) Chromatography

(B) Sublimation

(C) Fractional distillation

(D) Any of them

Question: 23

Which of the following does not have surface?

(A) Gas

(B) Solid

(C) Liquid

(D) None of these

Question: 24

Liquids always seek their own

(A) Density

(B) Shape

(C) Level

(D) Pressure

Question: 25

Liquids and gases are called

(A) Sublimating substances

(B) Fluids

(C) Evaporating substances

(D) Magnetic substances