1. ⇒ (MHT CET 2023 11th May Evening Shift )

What is the formal charge on sulfur in following Lewis structure?

MHT CET 2023 11th May Evening Shift Chemistry - Chemical Bonding and Molecular Structure Question 8 English

A. 2

B. $-$ 2

C. 0

D. $-$ 1

Correct Option is (C)

Formal Charge $(FC) =$ V.E. - N.E. $- 1 / 2$ (B.E.)

$FC$ on $S = 6 - 0 - 1 / 2 (12) = 0$

2. ⇒ (MHT CET 2021 21th September Evening Shift )

What is the formal charge of oxygen atom in carbon monoxide?

A. +2

B. +1

C. $-$ 1

D. zero

Correct Option is (B)

Carbon monoxide molecule $\Rightarrow: C \equiv O$ :

Formal charge of oxygen atom

$\begin{aligned} = V E - N E - \frac{1}{2} (B E) \\ = 6 - 2 - \frac{1}{2} (6) = + 1 \end{aligned}$

3. ⇒ (MHT CET 2021 21th September Morning Shift )

What is spin only magnetic moment of an element having one unpaired electron?

A. 0.34 BM

B. 1.0 BM

C. 1.73 BM

D. 3.1 BM

Correct Option is (C)

$μ = \sqrt{n (n + 2)} BM$

For $n = 1, μ = \sqrt{3} = 1.73 BM$

⇒Chemical Bonding