Question : In silvery paints , the main constituent present is

Option 1: Aluminium Powder

Option 2: Silver powder

Option 3: Lead powder

Option 4: White lead

Question : Addition excessive amounts of heat to a lake is referred to as:

Option 1: Refrigeration effect

Option 2: Green House effect

Option 3: Thermal pollution

Option 4: Heat Bloom

Question : If coffee powder costing Rs. 2500 per kg is mixed with coffee powder costing Rs. 1500 per kg, what ratio should be used so that the resulting mixture costs Rs. 2250 per kg?

Option 1: 1 : 4

Option 2: 4 : 1

Option 3: 3 : 1

Option 4: 1 : 3

Question : Name the gas used in preparation of bleaching powder

Option 1: oxygen

Option 2: hydrogen

Option 3: nirtogen

Option 4: chlorine

Question : ______ gas is used for the manufacturing of bleaching powder.

Option 1: Nitrogen

Option 2: Sulphur

Option 3: Oxygen

Option 4: Chlorine