How are oxides of sulphur prepared ? What are their properties?

How are cyanides and isocyanides prepared ? Give their important properties.

How are the synthetic detergents prepared? What are the disadvantages of synthetic detergents ?

How is ethyl alcohol prepared ? Give its important properties and uses.

How is heavy water prepared? Compare its physical properties with those of ordinary water.

How is plaster of paris prepared? Describe its chief property due to which it is widely used.

How does boron occur in nature and how is it prepared ? Describe its important chemical properties and uses.

Oxides of sulphur and nitrogen are important pollutants of :

Give one equation each to show the following properties of sulphuric acid: Dehydrating property

Nitrogen dioxide and sulphur dioxide have some properties in common, which property is shown by one of these compounds, but not by the other?

In which of the following compound the oxidation state of sulphur is different from other three?