Q.

C, X, Z, B and D are the elements belonging to 15th group of Modern periodic table. The correct trend of electronegativity in these elements is C = X < Z < B < D. The element ‘B’ in the sequence is

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a

As

b

Sb

c

N

d

P

answer is D.

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Detailed Solution

Atomic radius ; NP>As>Sb>Bi ;Melting point…As>Sb>Bi>P>N ;Boiling point….NP>As>Sb=Bi ;
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C, X, Z, B and D are the elements belonging to 15th group of Modern periodic table. The correct trend of electronegativity in these elements is C = X < Z < B < D. The element ‘B’ in the sequence is