HARD
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Match the following Columns.

Column I Column II
A. Gypsum 1. Prevent UV rays
B. Nylon 2. Non-stick utensils coating
C. Teflon 3. Textile fabrics
D. Crookes glass 4. Cement

Codes:

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Important Questions on Chemistry

EASY
UPSC CAPF AC Paper - I
IMPORTANT
A pressure cooker works on the principle of
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Why do two ice blocks join to form one block when pressed together?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
A student by chance mixed acetone with alcohol. The mixture of acetone and alcohol can be separated by _____
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Calcium carbonate is naturally available as limestone and can also be synthesized from quick lime. It is seen that the compositions of the elements in both the natural and synthetic calcium carbonate are same. The validity of which one among the following laws is confirmed by this observation?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
The purity of milk is determined by:
HARD
UPSC CAPF AC Paper - I
IMPORTANT
Which one among the following statements regarding the properties of mixtures and compounds is not correct?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
When the milk is churned vigorously the cream from it is separated out due to _____
EASY
UPSC CAPF AC Paper - I
IMPORTANT

Statement I: Physical change in matter bring change in its composition and nature.

Statement II: Physical change involves interconversion of states and colour.