potassium has a bdd structure with nearest neighbour distance of 4.54 arngstrong. its density will be in kgm-3.

options:a)4.54 b)808 c)852 d)910 .

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane