Different substances are classified as
I) Pure substance
II) Homogeneous mixture
III) Heterogeneous mixture
A few common substances are listed below:
(i) Air (ii) Graphite (iii) Gasoline (iv) Diamond (v) Tap water
(vi) Iron (vii) Sodium chloride (viii) Iodised salt (ix) Brass (x) Oil and water
Which of the following represents the correct classification of the given substances?

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None of these represents the correct match

I - i, iv, vii, ix

II - ii, v, viii

III - iii, vi, x

I - ii, vi, ix

II - i, v, vii

III - iii, iv, viii, x

I - ii, iv, vi, vii

II - i, iii, v, viii, ix

III – x

answer is B.

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Detailed Solution

Pure substances: Graphite, Diamond, Iron and Sodium Chloride.

Homogeneous mixtures: Air, Gasoline, Tap water Iodised salt and Brass.

Heterogeneous mixture: Oil and Water.

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(i) Air	(ii) Graphite	(iii) Gasoline	(iv) Diamond	(v) Tap water
(vi) Iron	(vii) Sodium chloride	(viii) Iodised salt	(ix) Brass	(x) Oil and water