Unit - 6.1 Chemical Reaction — CHEMISTRY STD 8 — Question

Red hot iron reacts with steam to form:

Choose the correct alternative. Graphite is not found in

Multiple Choice Questions The sum of number of protons and number of neutrons present in the nucleus of an atom is called its

During filtration the substance left behind on the filter paper is called

Choose the most appropriate answer: A mixture of sand and ammonium chloride can be separated by

Which of the following is an amorphous form of carbon?

The process due to which a solid directly changes into gaseous state on heating, without changing first into the liquid state, and the gaseous state on cooling directly changes into solid state, without changing first into the liquid state, is called

The chemical reaction which proceeds with release of heat energy is known as

In which of the following reactions can an element be broken into two or more smaller parts ?