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Q.

If IE and EA of an element are 280 and 90 Kcal mol-1 respectively then EN of the element on Pauling scale is:

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a

2.96

b

2.6

c

0

d

4.0

answer is A.

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Detailed Solution

 When IE & EA are taken in Kcal mol-1,

EN=IE+EA125=280+90125=2.96

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