A hard substance when bent produces a tinkling sound. Predict its nature.

Name the substance that is produced from baking soda and is used in the removal of permanent hardness of water.

A solid substance is hard and brittle. Its melting point is very high. Predict its nature.

A solid substance is hard and brittle. Its melting point is very high. Predict its nature.

A solid substance is hard and brittle. Its melting point is very high. Predict its nature.

When two substances X and Y were made to combine, another substance Z was formed. Following observations were recorded : (a) Large amount of heat was evolved when X and Y were made to combine. Predict the nature of the substance Z.

A substance has its melting point above room temperature under one atmosphere pressure. Predict its nature.

A substance has its melting point above room temperature under one atmosphere pressure. Predict its nature.

A substance has its melting point above room temperature under one atmosphere pressure. Predict its nature.