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JEE Previous Year Question

$Amongst B e F_{2}, B F_{3}, H_{2} O, N H_{3}, C C 1_{4} and HC1, the number of molecules with non-zero net dipole moment is__________.$

Topic: JEE PYQ

Answer: 3. Full step-by-step solution below.

Correct answer: 3

Solution

(3) B e F_{2}, B F_{3} and C C 1_{4} \Rightarrow μ_{n e t} = 0 H_{2} O, N H_{3} and HC1 \Rightarrow μ_{n e t} \neq = 0

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