1.

{:(,"List - I",," List - II"),(,"(Nearest neighbours)",,"(Co-ordination number)"),((P),"Second nearest neighbour of "Cs^(+) "in CsCl",(1),8),((Q),"Third nearest neighbour of "Na^(+)" in NaCl",(2),12),((R ),"Second nearest neighbour of "Ca^(2+)" in "CaF_(2),(3),4),((S),"First nearest neighbour of " Zn^(2+)" in ZnS(Zinc blende)",(4),6):}

Answer»

P-4, Q-1, R-3, S-2
P-2, Q-1, R-4, S-3
P-4, Q-1, R-2, S-3
P-3, Q-1, R-4, S-2

ANSWER :C


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