Class 11th Chemistry Chemical Bonding and Molecular Structure Chemistry NCERT Exemplar Solutions Class 11th Chapter Four Chemistry

Number of electron deficient molecules among the following PH₃, B₂H₆, CCl₄, NH₃, LiH and BCl₃ is

Option 1 - <p>0</p>

Option 2 - <p>1</p>

Option 3 - <p>2</p>

Option 4 - <p>3</p>

2 Views|Posted 4 months ago

Asked by Shiksha User

1 Answer

Sort by:

R

Answered by

Raj Pandey | Contributor-Level 9

4 months ago

Correct Option - 4

Detailed Solution:

Number of electrons in

$P H_{3} = 15 + 3 = 18$

$B_{2} H_{6} = 5 * 2 + 6 = 16$

$\begin{array}{l} C C l_{4} = 6 + 17 * 4 = 6 + 68 = 74 \\ N H_{3} = 7 + 1 * 3 = 10 \\ L i H = 3 + 1 = 4 \\ B C l_{3} = 5 + 17 * 3 = 56 \end{array}$

$B_{2} H_{6} & B C l_{3}$ are e^- deficient molecules. B₂H₆ is dimer of BH₃, both compound has 6e^- only.

Upvote

Thumbs Down Icon

Similar Questions for you

The standard enthalpy of combustion at 25°C of hydrogen, cyclohexene (C₆H₁₀) and cyclohexane (C₆H₁₂) are –241, –3800 and –3920 kJ mol–1 respectively. Calculate the standard enthalpy of hydrogenation of cyclohexene.

Alok Kumar Singh

HCP crystal is made of A ions and B ions are arranged in 2/3rd of octahedral voids. The simplest formula of compound is :-

Alok Kumar Singh

Enthalpy of neutralisation of CH₃COOH by NaOH is – 50.6 kJ/mol and the heat of neutralisation of a strong acid with NaOH is – 55.9 kJ/mol. The value of ΔH for the ionisation of CH₃COOH is :

Alok Kumar Singh

CH₃COOH + NaOH → CH₃COONa + H₂O

ΔH = –50.6 kJ/mol

NaOH + SA [HCl] → NaCl + H₂O

ΔH = –55.9 kJ/mol

the value of ΔH for ionisation of CH₃COOH

⇒ ΔH = +55.9 – 50.6

5.3 kJ/mol

Kindly Consider following table–

(i) The correct match is–

Alok Kumar Singh

Kindly consider the solution

Fact.

Which of the following is a carbonate ore ?

Alok Kumar Singh

Kindly go through the solution

Taking an Exam? Selecting a College?

Get authentic answers from experts, students and alumni that you won't find anywhere else.

On Shiksha, get access to

66K

Colleges

|

1.2K

Exams

|

6.8L

Reviews

|

1.8M

Answers

Learn more about...

Chemistry Chemical Bonding and Molecular Structure 2025

Chemistry Chemical Bonding and Molecular Structure 2025

View Exam Details

Most viewed information

Share Your College Life Experience

Didn't find the answer you were looking for?

Search from Shiksha's 1 lakh+ Topics

or

Ask Current Students, Alumni & our Experts

Quick Actions

Community GuidelinesUser Points System

QuestionsDiscussionsTags

Have a question related to your career & education?

or

See what others like you are asking & answering