How is bakelite made and what is its major use? Why is bakelite a thermosetting polymer ?

What is tincture of iodine ? What is its use ?

What is Hinsberg's reagent? What is its use?

What is tincture of iodine ? What is its use ?

Assertion : Bakelite is formed when novalac is heated with formaldehyde and it is a thermosetting polymer. Reason : Bakelite is an infusible solid mass

Phenol and fomaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B) Name the polymers. Write the reaction involved in the formation of (A) what is the structural difference between two polymers?

What is a null vector ? What is its use ?

Statement-1 : Bakelite is copolymer Statement-2 : Bakelite is a thermosetting material.

How is lithium aluminium hydride prepared? What is its important use?