Chlorine -containing substances are not ODS.

Chloroplasts contain green substance called-

Fill in the blanks : The heat contained in a substance is the measure of the …………… kinetic energy of atoms in the substance .

Sodium and chlorine are poisonous substances but sodium chloride is edible. State reason.

Acidic substancs contains ions.

Name two substances from daily life which contain acid and two substances which contain base .