Complete the equations:

a)

b)

Write the chemical reactions involved in the extraction of silver from silver ore?

Name two most important allotropes of Sulphur. Which one of the two is stable at room temperature? What happens when the stable form is heated above 370 K?

OR

(i) Write the conditions to maximise the yield of by contact process.

(ii) Why is <<for in water?

Write the state of hybridisation, shape and IUPAC name of the complete

Write chemical equations when

a) Ethyl chloride is treated with aqueous KOH

b) Chlorobenzene is treated with CH₃COOH in presence of anhydrous