Which of the following facts regarding boron and silicon is…

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) General Single Correct MCQ

Published on: August 13, 2026

Which of the following facts regarding boron and silicon is/are true ?

Boron is used to make boron steel or boron carbide control rods for nuclear reactor.

Boron and silicon form halides which are not hydrolysed.

Boron and silicon react with magnesium to form magnesium boride and magnesium silicide which are decomposed by acids to give volatile borane and silane, respectively.

Both boron and silicon react with alkali to form borates and silicates containing BO 3 3– and SiO 4 4– tetrahedral units, respectively.

Text Solution

Verified by Experts

The correct answer is:

CHECK THE SOLUTION.

(a,c,d)

BCl 3 + 3H 2 O H 3 BO 3 + 3HCl ; SiCl 4 + 3H 2 O H 2 SiO 3 + 4HCl

B + Mg Mg 3 B 2 + H 3 PO 4 Mix of borones B 2 H 6

2B + 6NaOH 2Na 3 BO 3 + 3H 2 ; Si + 4NaOH Na 4 SiO 4 + 2H 2

Previous Question Next Question

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Share this question

Text Solution

Prepare Smarter with CGP Edu

Write a Review

Commentary

Student Reviews

Similar Questions