Match List I (Aerosol) with List II (Nature) and choose the correct answer from the options given below.

List I

i.Mist

ii.Smoke

iii.Fume

iv.Smog

List II

a.Aerosols consisting of solid particles

b.Aerosols produced by condensation of hot vapours of metals

c.Photochemical products of VOCs and oxides of nitrogen

d.Aerosols consisting of liquid droplets

Ai-d, ii-a, iii-b, iv-c ✓ Correct

Bi-a, ii-b, iii-c, iv-d

Ci-b, ii-d, iii-c, iv-a

Di-d, ii-b, iii-a, iv-c

Correct answer: (A) i-d, ii-a, iii-b, iv-c

Explanation

Mist is an aerosol made of fine liquid droplets suspended in air.

Smoke consists of tiny solid particles released mainly from combustion.

Fume is formed when hot vapours of metals condense into fine solid particles.

Photochemical smog is a product of volatile organic compounds reacting with oxides of nitrogen in sunlight.

These four differ by whether they carry liquid or solid matter and by how they form.

Particle size in such aerosols strongly affects how deep they can travel into the lungs.

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