JEE Main 2026 Apr 5 Shift 2, Chemistry Q3: Important Concepts Of Chemical Bonding

JEE Main2026Apr 5, Shift 2Chemistry

The covalent radii of atoms A and B are $r_{A}$ and $r_{B}$ , respectively. The covalent bond length and total length of AB molecule are respectively:

A
$(r_{A} + r_{B}), 2 (r_{A} + r_{B})$
B
$\frac{1}{2} (r_{A} + r_{B}), (r_{A} + r_{B})$
C
$(r_{A} + r_{B}), (r_{A} + r_{B})$
D
$2 (r_{A} + r_{B}), \frac{1}{2} (r_{A} + r_{B})$

Solution

The covalent bond length is the distance between nuclei in a bonded pair: $r_{A} + r_{B}$ .

The total length of the AB molecule extends from one outer edge to the other: $r_{A} + (r_{A} + r_{B}) + r_{B} = 2 (r_{A} + r_{B})$ .

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JEE Main 2026 Apr 5 Shift 2, Chemistry Q3: Important Concepts Of Chemical Bonding

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