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Question

What do the following denote?

(i) N

(ii) 2N

(iii) N2

(iv) 2N2

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Solution

(i). N denotes one 1 atom of element nitrogen.
.(ii)2N denotes two nitrogen atoms.
(iii) N2 denotes one mole nitrogen gas.
(iv) 2N2 denotes 2 moles of nitrogen gas


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