Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Incorrect statement(s) is/are
A. There is a small increase in radius from Si to Pb .
B. The ionization enthalpy of Sn is slightly greater than that of Pb .
C. The electronegativity values for elements from Si to Pb are almost the same.
D. Carbon can exceeds its covalence more than 4.
Text Solution
Verified by ExpertsThe correct answer is:
C
Due to poor shielding effect of intervening 
and 
orbitals, the ionization enthalpy of Pb is slightly greater than that of Sn . Carbon cannot exceed its covalence more than 4.
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