Question 1 - Past Year - 2 Mark Questions - Chapter 4 Class 10 - Carbon and its Compounds

Last updated at August 14, 2026 by

Give a test that can be used to confirm the presence of carbon in a compound. With a valency of 4, how is carbon able to attain noble gas configuration in its compounds?

 

Answer

If we burn a compound containing carbon in the presence of air, combustion will take place and CO 2 gas will be produced. We can check the presence of CO 2 by passing it through lime water .

If lime water turns milky , that means CO 2 gas has been produced and therefore confirming that the given compound has Carbon in it.

Example of a combustion reaction of a Carbon compound - Teachoo.png

Carbon has a valency of 4 which means it has 4 electrons in the outermost shell. In order to attain noble gas configuration, carbon atoms share these 4 electrons with other atoms to form covalent bonds .

Remove Ads
Teachoo · Class 10 Explore Class 10

Transcript

Give a test that can be used to confirm the presence of carbon in a compound. With a valency of 4, how is carbon able to attain noble gas configuration in its compounds? Answer If we burn a compound containing carbon in the presence of air, combustion will take place and CO2 gas will be produced. We can check the presence of CO2 by passing it through lime water. If lime water turns milky, that means CO2 gas has been produced and therefore confirming that the given compound has Carbon in it. Carbon has a valency of 4 which means it has 4 electrons in the outermost shell. In order to attain noble gas configuration, carbon atoms share these 4 electrons with other atoms to form covalent bonds.

Maninder Singh's photo - Co-founder, Teachoo

Made by

Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. He teaches Science, Economics, Accounting and English at Teachoo using clear explanations and exam-focused methods students can trust.

For faster and distraction-free study, students can choose Teachoo Black.