Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is

\(\mathrm{B},\mathrm{C},\mathrm{N},\mathrm{S},\mathrm{O},\mathrm{F},\mathrm{P},\mathrm{Al},\mathrm{Si}\)

[JEE Main 2024, 04 Apr (Shift 1)]

Question

Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is

\(\mathrm{B},\mathrm{C},\mathrm{N},\mathrm{S},\mathrm{O},\mathrm{F},\mathrm{P},\mathrm{Al},\mathrm{Si}\)

[JEE Main 2024, 04 Apr (Shift 1)]

YESPYQ · Accepted Answer

Correct answer: d) 3. N,O, F can’t extend their valencies upto their group number due to the non-availability of vacant 2d like orbital.

Number of elements from the following that CANNOT form compounds with valencies which match with their respective group …