H_2O is dipolar whereas BeF_2 is not. It is because:

JEE Main Chemistry question

is dipolar whereas is not. It is because:

(A)The electronegativity of F is greater than O
(B) involves H-bonding whereas is a discrete molecule
(C) is linear and is angular
(D) is angular and is linearCorrect

Answer: (D)

Solution

is bent/angular (owing to the two lone pairs on oxygen), giving it a net dipole moment, whereas gaseous is a linear molecule (sp hybridised Be), in which the two Be–F bond dipoles cancel exactly, giving a net zero dipole moment. The

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Question ID VK-138064