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Q.

In the series C,N,O and F electro negativity

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a

remains same

b

decreases carbon to oxygen and then increases

c

increases from carbon to fluorine 

d

decreases from carbon to fluorine

answer is D.

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Detailed Solution

In a period from left to right atomic number increases atomic radius so nuclear charge increases and valency electron. So it easily attract to electron. Generally in a period from left to right electron negativity increases.  

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