Engineering Chemistry I Practice Test 8

1. In the mechanism of vision, cis-retinal is converted into trans-retinal.

True

False

2. The weight average molecular weight for PP given its degree of polymerisation as 10,000 will be ____________

3,00,000 gm/mol

8,40,000 gm/mol

4,20,000 gm/mol

6,70,000 gm/mol

3. Which of the following is the condition for high and low quantum yield?

quantum field=1

The molecules in the activated state should be largely unstable and decompose to form the products

All the reactant molecules should be in the different energy state

The reactivity of the molecules should be temperature dependent

4. Which one of the following is not an example of thermoplastic?

Epoxy

Nylon

Polyesters

Polyvinyl chloride

5. The driving force of the diffusion process in phase diagram is __________________

The slope in temperature

The slope in solubility

The slope in pressure

The slope in Gibbs free energy

6. Retina is made up of which type of cells?

Rids and cones

Rods and cones

Rods and rhodospin

Rods and coans

7. When a molecule absorbs a photon, it is necessary that only one molecule should react.

True

False

8. Which of the following polymer is not classified under the category of configuration?

Isotactic

Cross-linked

Atactic

Syndiotactic

9. Which vitamin is important for vision?

Vitamin C

Vitamin B

Vitamin D

Vitamin A

10. In photosynthesis, carbon dioxide is converted into sugar by which process?

carbon reduction

photolysis

carbon fixation

sugar fixation