NEET Solved Paper 2016 Question 1
Question: Consider the molecules $ C{H_4}\text{,N}{H_3} $ and $ {H_2}O\text{.} $ Which of the given statements is false?
Options:
A) The H -C-H bond angle in $ CH _4, $ the H-N- bond angle in $ N{H_3}\text{,} $ and the H-O-H bond angle in $ {H_2}O $ ar all greater than $ 9{0^{o}} $
B) The H-O-H bond angle in $ {H_2}O $ is larger than the H-C-H bond angle in $ C{H_4}. $
C) The H-O-H bond angle in $ {H_2}O $ is smaller than the H-N-H bond angle in $ N{H_3}\text{.} $
D) The H-C-H bond angle in $ C{H_4} $ is larger than the H-N-H bond angle in $ N{H_3}\text{.} $
Show Answer
Answer:
Correct Answer: B
Solution:
- All the three molecules are $sp_3$ hybridised but the bond angles are different due to the presence of lone pair. The bond angle of $H_2O$ is $104.5^o $due to bond pair - lone pair repulsion and the bond angle of CH_4 is $109.25^o$ .
BETA
