Which colloidal solution is commonly used as germ killer?

Sodium metal is kept under which liquid?

What is the substance which decreases the rate of a chemical reaction?

Which is the substance which can act both as an acid and a base?

What is formed when white phosphorus is heated at 540 K in the absence of air?

What is the composition of Nitrolim-a chemical fertilizer?

In which cell organelle do photo and thermochemical reactions occur in different sites ?

Which is the main ingredient in cement?

Which Bacteria convert atmospheric nitrogen into nitrogenous compound?

Flux reacts with the impurities to form fusible material. which is known as which name?