EASY
10th CBSE
IMPORTANT
Earn 100

Name a metal which combines with hydrogen gas. Name the compound formed.

Important Questions on Metals and Non-Metals

HARD
10th CBSE
IMPORTANT
Why are metals called electropositive elements and non-metals called electronegative elements?
MEDIUM
10th CBSE
IMPORTANT
Which of the two metals: copper or silver is more reactive?
HARD
10th CBSE
IMPORTANT
Name two metals which react with dilute nitric acid to produce hydrogen gas.
MEDIUM
10th CBSE
IMPORTANT
Give one example each of metal that is good conductor of electricity and metal that is poor conductor of electricity
MEDIUM
10th CBSE
IMPORTANT
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non metal?
MEDIUM
10th CBSE
IMPORTANT
A solution of CuSO4 was kept in an iron pot. After a few days the iron pot was found to have a number of holes in it. Explain the reason in terms of reactivity. Write the equation of the reaction involved.
MEDIUM
10th CBSE
IMPORTANT
Give differences between calcination and roasting.
MEDIUM
10th CBSE
IMPORTANT
What would happen to iron railings on the roadside if they are not painted? Why does it happen so?