TS EAMCET · Chemistry · Chemical Bonding and Molecular Structure

Which of the following is correct?

A The number of electrons present in the valence shell of \(\mathrm{S}\) in \(\mathrm{SF}_6\) is 12
B The rates of ionic reactions are very slow
C According to VSEPR theory, \(\mathrm{SnCl}_2\) is a linear molecule
D The correct order of ability to form ionic compounds among \(\mathrm{Na}^{+}, \mathrm{Mg}^{2+}\) and \(\mathrm{Al}^{3+}\) is \(\mathrm{Al}^{3+}>\mathrm{Mg}^{2+}>\mathrm{Na}^{+}\)

Verified Solution

Answer & Solution

Correct Answer

(A) The number of electrons present in the valence shell of \(\mathrm{S}\) in \(\mathrm{SF}_6\) is 12

Step-by-step Solution

Detailed explanation

\(\mathrm{SF}_6\) does not obey octet rule as in it S-atom has 12 electrons in its valence shell.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Explore more questions on app

From TS EAMCET

Explore more questions on app