Question

Given below are two statements:
Statement I: The electronegativity of group 14 elements from Si to Pb gradually decreases.
Statement II: Group 14 contains non-metallic, metallic, as well as metalloid elements.
In the light of the above statements, choose the most appropriate from the options given below:

• A. Both Statement I and Statement II are false
• B. Both Statement I and Statement II are true
• C. Statement I is true but Statement II is false
• D. Statement I is false but Statement II is true

Answer 1

The Correct Option is D

Evaluating the statements regarding group 14 elements:

1. Statement I: Electronegativity of group 14 elements from Si to Pb gradually decreases.

This statement is incorrect. Electronegativity typically decreases down a group due to increased atomic radius and shielding. Consequently, electronegativity decreases from Si to Pb. While not strictly "gradual" due to variations in metallic properties, Si is more electronegative than Pb.

1. Statement II: Group 14 includes non-metallic, metallic, and metalloid elements.

This statement is true. Group 14 comprises Carbon (C) as a non-metal, Silicon (Si) and Germanium (Ge) as metalloids, and Tin (Sn) and Lead (Pb) as metals. This property variation stems from increasing atomic size and metallic character down the group.

In summary, Statement I is false, and Statement II is true. The correct option is:

• Statement I is false but Statement II is true.