Question

Boron and Silicon react with several metals to form:

• A. borates and silicates
• B. borides and silicides
• C. borates and silicides
• D. borides and silicates

Answer 1

The correct option is B borides and silicides

There is a diagonal relationship between Boron and Silicon.

Both Boron and Silicon are non metals and exists in allotropic forms

Boron and silicon reacts with several metals to form borides and silicides

$3Mg+2B\to M{g}_3{B}_2$

$2Mg+Si\to M{g}_{2}Si$

borides and silicides are decomposed by dilute acids to give volatile hydrides.