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1
Which of the following substances is used in cold countries to melt ice accumulated on the roads during winter?
2
Which of the following options is used as disinfectant to disinfect the Personal Protective Equipments (PPE) used by sanitation workers?
3
Identify the metals which can be extracted by cyanide process
4
Which of the following is NOT a noble gas?
5
The most common material used in making solar cells is
6
The mass of one Hydrogen atom is approximately
7
Most of the mass of an atom is concentrated in the
8
Esters are formed by reaction of
9
Anhydroud calcium chloride is a
10
Vinegar contains