Solved Chemistry MCQS Set 2

Which one is not usually used for the crystallization?

Sulphuric acid

Acetic acid

Acetone

Chloroform

Potassium crystallizes with a

Cubic lattice

Orthogonal lattice

Triclinic

Ortho rhombic lattice

When a carbon atom forms single bonds with other carbon atoms, these hybird orbitals overlap with the orbitals of hydrogen to form four bonds which are

Three sigma and one P_i

Two sigma andtwo P_i

Sigma

One sigma and three P_i

A clathrate may be defined as a

Cage compound

Liquid crystal

Solid solution

Mixture

Potassium is kept in

Kerosene.

Water

Alcohol

Ammonia

The dimension of rate constant of second order reaction involves

Neither time nor concentration

Time and square of concentration

Time and concentration

Only time

Zero

Positive or negative

positive

Negative

The pore size of filter paper depends upon

Nature of the medium

Temperature of the medium

Size of particles

Mass of the particles

On heating acetaldehyde with ammonical silver nitrate solution, we get

HCHO

Silver acetate

Silver mirror

CH₃OH

SO₂ and NO₂produce pollution by increasing

Neutrality

Buffer action

Alkalinity

Acidity