Physical properties of :

Discuss the general trend in physical and chemical properties of Gr 16 elements.

Give any two physical and three chemical properties of HCl with equations.

What type of defect will arise when a solid is heated? Which physical property is affected by it and in what way?

The colligative properties of a solution depend on :

Write the anomalous properties of fluorine.

Physical adsorption is :

Assertion : Secondary treatement of sewage is also called biological treatment while primary treatment is called physical treatment. Reason : Primary sewage treatment depends only upon sedimentation properties of materials present in sewage and filtration.