(a) State two properties of carbon which lead to a very large number of carbon compounds.(b) Why does micelle formation take place when soap is added to water? Why are micelles not formed when soap is added to ethanol?

Academic Chemistry NCERT Class 10

(a) Two properties of carbon that lead to a very large number of carbon compounds are:

i. Tetravalency: Carbon has valency 4 i.e., it is tetravalent. Hence, it is capable of bonding with four other atoms of other monovalent elements.

ii. Catenation: Carbon has the unique ability to form bonds with other atoms of carbon to form long chains.

(b) A soap molecule has two parts :

hydrophobic part
hydrophilic part.

When added to water, the hydrophobic part arranges itself towards the dirt and the hydrophilic end arranges itself towards the water.

Micelle formation does not take place when soap is added to ethanol because the hydrophobic part of soap molecules is soluble in ethanol.

Tutorialspoint

Updated on: 10-Oct-2022

48 Views

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements