Chemistry MCQS for Class 10
Fertilizers are used to make up the deficiency of;
nitrogen and phosphorus
oxygen and carbon
iron and magnesium
hydrogen and calcium
The percentage of water in human body is about:
80%
70%
60%
50%
Mercury poisoning cause:
kidney damage
neurological damage
gastro
high blood pressure
Example of pest is
All of them
Weeds
Insect
Herbs
A disease is caused by excess of bile pigments in the blood is.
Cholera
Jaundice
Dysentery
Typhoid
Temporary hardness can be removed by__________.
HCl
Lime stone
Quick lime
Slaked lime
Which one of the following disease causes severe diarrhea and can be fatal:
Jaundic
Typhoid
Dysentery
Cholera
Which one of the following salts makes the water permanent hard.
NaCO3
CaSO4
Ca(HCO3)2
NaHCO3
Chemical form of gypsum.
MgSO4. 5H2O
CuSO4. 5H2O
FeSO4. 5H2O
CaSO4. 2H2O
Water has a maximum density at .
0oC
10oC
100oC
4oC
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