Question

C] FIND THE ODD MAN OUT:


i) Na, K, Ag, Cu, Br.


ii) Coal, coke, graphite, soot


iii) Cl, K, Br, I.


iv) Baked food items, dry ice, drilling, photosynthesis.


v) Lavoiser, Joseph Black, Cruik Shank, Van Helmont.​

Answer 1

Correct option is

D

graphite

The odd one out is graphite. Graphite is in crystalline form of carbon whereas charcoal, coke and lampblack are non-crystalline or amorphous forms of carbon.

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