EASY
Stage 1 & 2
IMPORTANT
Earn 100

The colour of copper oxide is

50% studentsanswered this correctly

Important Questions on Chemical Reactions and Equations

MEDIUM
Stage 1 & 2
IMPORTANT
The precipitate formed when copper sulphate reacts with hydrogen sulphide
MEDIUM
Stage 1 & 2
IMPORTANT
Calcium oxide and carbon dioxide are formed due to the decomposition of 
MEDIUM
Stage 1 & 2
IMPORTANT

Fe2O3+2AlAl2O3+2Fe

The above reaction is an example of a 

MEDIUM
Stage 1 & 2
IMPORTANT

Which of the statements about the reaction below are incorrect?

2PbOs+Cs2Pbs+CO2g

1. Lead is getting reduced

2. Carbon dioxide is getting oxidised

3. Carbon is getting oxidised

4. Lead oxide is getting reduced