A covalent molecule X-Y is found to have a dipole moment of 1.5×10-29C.m and a bond length of 150pm. The percent ionic character of the bond will be

AP EAMCET · Chemistry · Chemical Bonding and Molecular Structure

A covalent molecule $X - Y$ is found to have a dipole moment of $1.5 \times 10^{- 29} C . m$ and $a$ bond length of $150 pm$ . The percent ionic character of the bond will be

A $50 %$
B $62.5 %$
C $75 %$
D $80 %$

Verified Solution

Answer & Solution

Correct Answer

(B) $62.5 %$

Step-by-step Solution

Detailed explanation

Dipole moment= q×d Bond length d=150pm=150×10-12m Charge q=1.6×10-19 Dipole moment = 150×10-12×1.6×10-19=2.4×10-29 Percentage ionic character =Dipole observedDipole calculated×100 Dipole observed = 1.5×10-29 Percentage ionic…

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.

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