JEE Main 20244 AprilMorning Shift

Exam: JEE Main
Year: 2024
Date: 4 April
Shift: Morning Shift
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2024 · 4 April · Morning Shift · Chemistry · Classification of Elements and Periodicity in Properties

Number of elements from the following that CANNOT form compounds...

Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is ______. B, C, N, S, O, F, P, Al, Si

Options

Correct answer

B. 3

Step-by-step solution

\mathrm{N}, \mathrm{O}, \mathrm{F}

can't extend their valencies upto their group number due to the non-availability of vacant

2 \mathrm{~d}

like orbital.

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