MEDIUM
10th CBSE
IMPORTANT
Earn 100

Aluminium is used for making cooking utensils. Which of the following properties of aluminium is responsible for the same? 
i Good thermal conductivity

ii Good electrical conductivity

iii Ductility

iv High melting point

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Important Questions on Metals and Non-Metals

MEDIUM
10th CBSE
IMPORTANT

Which of the following metals exist in their native states in nature? 
i Cu

ii Au

iii Zn

iv Ag

EASY
10th CBSE
IMPORTANT
Which of the following oxide(s) of iron would be obtained, on prolonged reaction of iron with steam? 
MEDIUM
10th CBSE
IMPORTANT
Name the constituents of bronze.
MEDIUM
10th CBSE
IMPORTANT
Hydrogen gas is not evolved, when metals react with _____ acid as it is a strong oxidising agent.(nitric/acetic)
MEDIUM
10th CBSE
IMPORTANT
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
EASY
10th CBSE
IMPORTANT
Give reasons for the following: Metals conduct electricity
 
MEDIUM
10th CBSE
IMPORTANT

Give reasons for the following:

Copper does not liberate hydrogen on reacting with dil.H2SO4