प्रायः शब्द का

Electrostatic precipitator is used to control —

Which vitamin helps in blood clotting? 

What is the metric unit of pressure that is equal to 0.986923 atm?

The Aedes Aegypti mosquito can NOT act as a vector for -

The number of electrons present in Carbon is?

Which polymer is used in the production of bullet-proof materials?

A colour-blind person cannot –

The oldest type of energy known to man is –

Silver bromide when kept in sunlight undergoes a change in color. What is the color formed?

A 60 W lightbulb is connected to a 120V power source. What is the resistance of the bulb?