What are soapless soaps?

Important Questions on Carbon and its Compounds

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 1

A compound with the molecular formula C₂H₆O is used as a fuel, identify the compound. (Ethanal/ Ethanol)

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 2

What are soapless soaps?

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 11

Why is CNG considered an environmentally friendly fuel?

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 14

Write the condensed structures of butane, 2-Methylbutane and 2, 3-Dimethylbutane. How are they related to one another?

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 20

Draw the possible isomers of the compound with molecular formula ${\mathrm{C}}_3{\mathrm{H}}_6\mathrm{O}$ and also give their structures and chemical name.

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 22

What happens when a few drops of blue litmus are added to ethanoic acid?

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 25

Which salts are responsible for making water hard?

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 4 - Carbon and its Compounds>MOCK TEST>Q 25

Name a chemical added to water to remove permanent hardness of water.