Question

Which of the following statements regarding the similarities between boron and silicon is not correct?

• A. Both form halides that undergo hydrolysis
• B. Both form electron precise hydrides
• C. Both form acidic oxides
• D. Density of both is almost same \bigskip

Hint:

Boron forms \textbf{electron-deficient hydrides} (boranes), whereas carbon forms electron-precise hydrides. This is an important distinction in \(p\)-block chemistry.

Answer 1

The Correct Option is B

Concept: Diagonal relationship of B and Si. Both form acidic oxides, hydrolyzable halides, comparable densities. Boranes are electron-deficient, not electron-precise.

Step 1: Statement about electron precise hydrides is incorrect (boranes are electron-deficient).

Step 2: Write the final answer. \(\boxed{\text{Both form electron precise hydrides}.}\)