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Solution


Q.

Elements X and Y belong to Group 15. The difference between the electronegativity values of ‘X’ and phosphorus is higher than that of the difference between phosphorus and ‘Y’. ‘X’ & ‘Y’ are respectively   [2026]
1 As & Sb  
2 As & Bi  
3 N & As  
4 Bi & N  

Ans.

(3)

Element  EN
N     3.0
P     2.1
As      2.0
Sb     1.9
Bi      1.9

X = Nitrogen (N)

Y = Arsenic (As)