JEE Main 2024 Chemistry question
Evaluate the following statements related to group 14 elements for their correctness. (A) Covalent radius decreases down the group from C to Pb in a regular manner. (B) Electronegativity decreases from C to Pb down the group gradually. (C) Maximum covalence of C is 4 whereas other elements can expand their covalence due to presence of d orbitals. (D) Heavier elements do not form p–p bonds. (E) Carbon can exhibit negative oxidation states. Choose the correct answer from the options given below:
Answer: (A)
Solution
Covalent radius increases down the group and electronegativity is irregular, so (A) and (B) are false.