Consider the molecules CH 4 , NH 3 and H 2 O . Which of the given statements is false? [2016]

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Solution

Q.
Consider the molecules ${CH}_{4}$ , ${NH}_{3}$ and $H_{2} O$ . Which of the given statements is false [2016]

1 The H—O—H bond angle in $H_{2} O$ is smaller than the H—N—H bond angle in ${NH}_{3}$ .

2 The H—C—H bond angle in ${CH}_{4}$ is larger than the H—N—H bond angle in ${NH}_{3}$ .

3 The H—C—H bond angle in ${CH}_{4}$ , the H—N—H bond angle in ${NH}_{3}$ and the H—O—H bond angle in $H_{2} O$ are all greater than 90°.

4 The H—O—H bond angle in $H_{2} O$ is larger than the H—C—H bond angle in ${CH}_{4}$ .

Ans.
(4)

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Solution

Q. Consider the molecules CH4, NH3 and H2O. Which of the given statements is false [2016]

1 The H—O—H bond angle in H2O is smaller than the H—N—H bond angle in NH3.

2 The H—C—H bond angle in CH4 is larger than the H—N—H bond angle in NH3.

3 The H—C—H bond angle in CH4, the H—N—H bond angle in NH3 and the H—O—H bond angle in H2O are all greater than 90°.

4 The H—O—H bond angle in H2O is larger than the H—C—H bond angle in CH4.

Ans. (4)

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Q.
Consider the molecules ${CH}_{4}$ , ${NH}_{3}$ and $H_{2} O$ . Which of the given statements is false [2016]

1 The H—O—H bond angle in $H_{2} O$ is smaller than the H—N—H bond angle in ${NH}_{3}$ .

2 The H—C—H bond angle in ${CH}_{4}$ is larger than the H—N—H bond angle in ${NH}_{3}$ .

3 The H—C—H bond angle in ${CH}_{4}$ , the H—N—H bond angle in ${NH}_{3}$ and the H—O—H bond angle in $H_{2} O$ are all greater than 90°.

4 The H—O—H bond angle in $H_{2} O$ is larger than the H—C—H bond angle in ${CH}_{4}$ .

Ans.
(4)