Chemistry Questions Answers

The stench due to leakage from LPG cylinder is because of

If an unsaturated sugar solution is prepared by mixing 100 grams of sugar with half litre of water, which of the following physical quantities will not change?

Zinc is used to protect iron from corrosion because zinc is—

Which one of the following is a chemical change?

Which one among the following chemicals is used as washing soda?

Why is potassium permanganate used for purifying drinking water?

The statement that 'heat cannot flow by itself from a body at a lower temperature to a body at a higher temperature', is known as—

Water boils at a lower temperature at high altitudes, because—

The majority charge carriers in a p-type semiconductor are—

The ionization energy of hydrogen atom in the ground state is—