JEE Main 2016 · 10 Apr · Shift 1 · Chemistry Q34

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ChemistrySingle correct+4 / -1Question 34 of 90

The bond angle H-X-H is the greatest in the compound :

\ce{CH4}

\ce{NH3}

\ce{H2O}

\ce{PH3}

Answer and worked solution

Official answer: A

$\ce{CH4}$ has no lone pairs and a tetrahedral angle of 109.5°. Lone pairs squeeze the angle in $\ce{NH3}$ (107°) and $\ce{H2O}$ (104.5°), and $\ce{PH3}$ is about 93°.

Topics:VSEPR theory

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JEE Main 2016 · 10 Apr · Shift 1, Chemistry question 34