A) \[C,N,Si,P\]
B) \[N,Si,C,P\]
C) \[Si,P,C,N\]
D) \[P,Si,N,C\]
Correct Answer: C
Solution :
On moving along a period from left to right in Periodic Table, electronegativity increases (due to decrease in size). While on moving downward in a group, electronegativity decreases. Thus, the correct order of electronegativity is \[\underset{(1.8)}{\mathop{Si}}\,<\underset{(2.1)}{\mathop{P}}\,<\underset{(2.5)}{\mathop{C}}\,<\underset{(3.0)}{\mathop{N}}\,\]
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