44.
Match List I with List II.
List-I (Item) List-II (Toxic Substance)
a. CFL Lamp 1. Nitrogen oxide
b. Automobile battery 2. Phthalates
c. Polymer 3. Lead
d. Diesel engine 4. Mercury

48.
Assertion (A) Natural rubber has poor elasticity.
Reason (R) It has almost no cross linkages.