MEDIUM
10th CBSE
IMPORTANT
Earn 100

Why are ionic compounds usually hard crystalline solids?

Important Questions on Metals and Non-Metals

MEDIUM
10th CBSE
IMPORTANT
Give two methods to prevent rusting of iron.
MEDIUM
10th CBSE
IMPORTANT
 Name the ores of the metals (i) mercury (ii) zinc.
HARD
10th CBSE
IMPORTANT
Explain with the help of a diagram, how copper metal can be refined. Label the important arrangements in the experimental set up.
MEDIUM
10th CBSE
IMPORTANT
Write the balanced chemical equations for the extraction of copper metal from its ore. What is the reducing agent used?
MEDIUM
10th CBSE
IMPORTANT
Which reducing agent can be used in the extraction of metals placed at the top of the reactivity series? Give the name of the process also.
MEDIUM
10th CBSE
IMPORTANT
Name the chemical substance formed as green coating when copper reacts with atmospheric gases in moist conditions.(Copper carbonate/Copper bicarbonate)
MEDIUM
10th CBSE
IMPORTANT
Name the components of chrome steel and stainless steel.