The physical state of water at 373 K is

(a)

Solid

(b)

liquid

(c)

vapour

(d)

plasma

When we mix a drop of ink in water we get a__________

(a)

Heterogeneous Mixture

(b)

Homogeneous Mixture

(c)

Compound

(d)

Suspension

__________ has the same properties throughout the sample

(a)

Pure substance

(b)

Mixture

(c)

Colloid

(d)

Suspension

The separation of denser particles from lighter particles done by rotation at high speed is called ________

(a)

Filtration

(b)

sedimentation

(c)

decantation

(d)

centrifugation

Filtration method is effective in separating _______ mixture

(a)

Solid-solid

(b)

solid-liquid

(c)

liquid-liquid

(d)

liquid-gas

Gas particles can be forced to get closer and can be easily compressed. So _______ increases.

(a)

pressure

(b)

volume

(c)

mass

(d)

weight

Particles of matter are in constant motion as they possess ______energy.

(a)

potential

(b)

kinetic

(c)

solar

(d)

wind

_____ is a process by which a substance changes from the liquid to gaseous state.

(a)

Boiling

(b)

Evaporation

(c)

Melting

(d)

Condensation

The direct change of state from solid to gas is called______

(a)

filtration

(b)

decantation

(c)

sublimation

(d)

evaporation

A mixture can be separated into its constituents by_____

(a)

Physical

(b)

Chemical

(c)

Electrical

(d)

Magnetic