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

______ is essential to perform separation by solvent extraction method.

(a)

Separating funnel

(b)

centrifuge machine

(c)

filter paper

(d)

sieve

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

(a)

pressure

(b)

volume

(c)

mass

(d)

weight

Light, sound, heat, etc., are not matter. They are different forms of

(a)

solids

(b)

liquids

(c)

gases

(d)

energy

1500C = __________ K

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  1773.15 ^oK

Evaporation is always accompanied by______________ in temperature

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increase

A _____mixture has no distinguishable boundary between its components

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homogeneous

All matter is made up of tiny particles and these particles are in constant motion which possess________

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Kinetic energy

The particles start moving faster as their kinetic energy_____

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increases

Liquids expand more than gases on heating.

(a) True

(b) False

A compound cannot be broken into simpler substances chemically

(a) True

(b) False

Water has a definite boiling point and freezing point.

(a) True

(b) False

Homogeneous components are invisible to naked eye

(a) True

(b) False

The properties of a compound are as same as their constituent elements

(a) True

(b) False

Element

(1)

Pure substance

Compound

(2)

Magnet-

Charcoal

(3)

Made up of atoms

Chromatography

(4)

Adsorbent

Mixture of iron & sulphur

(5)

Mobile phase