Select incorrect statement:

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

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Interstitial carbides are formed by metalloids like Si and B

SiC is called carborundum

CO and CN– both are fatal due to complex formation with Fe(III) present in blood

CO is obtained as by-product when carbon and SiO2 is used in reduction processes of phosphate rock to give phosphorus.

Text Solution

Verified by Experts

The correct answer is:

Interstitial carbides are formed by transition elements and lanthanides.

SiC is a covalent carbide known by the name

carborundum.

CO is toxic, because it forms a complex with

haemoglobin in the blood and this complex is more stable than oxy-haemoglobin. This prevents the haemoglobin in the red blood corpuscles from carrying oxygen round the body. This causes oxygen deficiency, leading to unconsciousness and then death.

Hb—O2 + CO Hb—CO + O2

2Ca3(PO4)2 + 6SiO2 + 10C P4 + 6CaSiO3 + 10CO.

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