Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • I need help with Consider the molecules CH4, NH3 and H2O. Which of the given statements isfalse?

Consider the molecules CH4, NH3 and H2O. Which of the given statements is false?

  • Option 1)

    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 90o.

  • Option 2)

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

  • Option 3)

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

  • Option 4)

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

 

Answers (1)

best_answer

As we learnt in

VSEPR Theory -

1.  The shape of the molecule is determined by repulsions between all of the electron pair present in valence shell.

2.  Order of repulsion 

             lone \:pair-Lone\: pair> Lone\:pair-Bond\:pair> Bond\:pair-bond\:pair

3  Repulsion among the bond pair is directly proportional to the bond  order and electronegativity difference between the central atom and the other atom.

-

 From the above fugure it is clear that H—O—H bond angle in H_{2}O is smaller than H—C—H bond angles in CH_4.


Option 1)

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 90o.

This option is incorrect

Option 2)

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

This option is correct

Option 3)

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

This option is incorrect

Option 4)

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

This option is incorrect

Posted by

Aadil

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

MCC NEET UG 2024 Counselling: Special round schedule out; choice filling begins from November 20
anam-khan

Rajasthan NEET UG counselling board cancels MBBS admissions of 100 students at PMCH
anam-khan

100 MBBS students’ fate uncertain as HC reverses ruling on extra seats at Rajasthan private medical college

Latest Question