Which of the following is known as Marsh gas?

What is the main constituent of LPG?

Which of the following is called Producer gas?

What is the industrial name of Na₂CO₃.10H₂O?

Which of the following is the purest form of carbon?

What is the number of atoms in a single molecule of sulphur?

Galena is a sulphide ore of which of the following?

IC chips of computers are made up of which of the following?

The ratio of concentration of HCl and HNO₃ in Aqua Rizia is

Which of the following acids has pH value 3?

Which of the following is used for blue coloured glass?

Litmus test of salt gives which of the following colours?

Which of the following is not a constituent of cement?

Which of the following is a monomer of natural rubber?

Which of the following is used as an antiseptic?