MEDIUM
10th CBSE
IMPORTANT
Earn 100

What type of problems can be caused while using soaps? How this problem can be overcome?

Important Questions on Carbon and Its Compounds
MEDIUM
10th CBSE
IMPORTANT
Why detergents are better cleansing agents than soaps? Explain.

HARD
10th CBSE
IMPORTANT
Both soap and detergent are some types of salts. What is the difference between them? Describe in brief the cleansing action of soap. Why do soaps not form lather in hard water? List two problems that arise due to the use of detergents instead of soaps.

EASY
10th CBSE
IMPORTANT
Name the following compound:

MEDIUM
10th CBSE
IMPORTANT
Name the following compound:


MEDIUM
10th CBSE
IMPORTANT
Give the general formula for alkanes. Why are alkanes also called paraffins?

MEDIUM
10th CBSE
IMPORTANT
Illustrate the formation of nitrogen molecule using an electron dot diagram.

HARD
10th CBSE
IMPORTANT
Atomic numbers of three elements X, Y and Z are , and respectively.
(a) Write down the molecular formula of the compound formed by elements ‘X’ and ‘Y’.
(b) Explain the bonding of other compounds formed.

HARD
10th CBSE
IMPORTANT
Draw the possible isomers of the compound with molecular formula and also give their electron dot structures.
