Iodized salt is a:

• a mixture of potassium iodide and common salt

• a mixture of molecular iodine and common salt

• a compound formed by the combination of potassium iodide and common salt

• a compound formed by the combination of molecular iodine and common salt

Which one among the following is a chemical process?

• Distillation of sea (salty) water

• Crystallization of impure salt (NaCl)

• Production of iodine (I₂) from sea-weeds

• Sublimation of iodine (I₂)

Which one among the following statements regarding the properties of mixtures and compounds is not correct?

• A mixture shows the properties of its constituents but the properties of a compound are entirely different from its constituents

• A mixture may be homogeneous or heterogeneous but a compound is a homogeneous substance

• The constituents of a mixture can be separated by physical methods but those of a compound can not be separated by physical method

• Energy is either absorbed or evolved during the preparation of a mixture but not in the preparation of a compound