Question

12. Percentage covalent character is higher in
(1) NaF
(2) NaCl
(3) NaBr
(4) Nal​

Answer 1

Answer:

The answer is NaI.

Explanation:

In the periodic table, as we move from top to bottom, the ionic radii of the halide anions increase from top to bottom.

Their order of increasing the covalent character is given as MF < MCl < MBr < MI.

Thus it is obvious that the iodide ion has the maximum polarisability. Which gradually decreases from bromide ion to the fluoride ions respectively. Therefore it is evident that the covalent character of these halides increases from top to bottom order.

Answer 2

Answer: NaI is the answer.

Explanation: as we move from top to bottom atomic size increases which result in the increase in covalent character and decrease in ionic character to stabilize the compound

So NaI has highest percentage covalent character