Engineering Chemistry I Mock Test 8

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Question 1 of 10

1. Which of the following is useful for determination of volatilities of plasticizers and other additives?

Differential scanning calorimetry

Atomic force microscopy

Thermo gravimetric analysis

Scanning electron microscopy

Question 1 of 10

Question 2 of 10

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

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

quantum field=1

Question 2 of 10

Question 3 of 10

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

6,70,000 gm/mol

8,40,000 gm/mol

4,20,000 gm/mol

3,00,000 gm/mol

Question 3 of 10

Question 4 of 10

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

False

True

Question 4 of 10

Question 5 of 10

5. The study of fracture surfaces of polymeric material is done using ____________

Thermo gravimetric analysis

X-ray diffraction

Atomic force microscopy

Scanning electron microscopy

Question 5 of 10

Question 6 of 10

6. Photosynthesis is a photochemical process.

False

True

Question 6 of 10

Question 7 of 10

7. Which of the following technique is used to measure the number of conjugated double bonds and aromatic conjugation within the various molecules?

Fourier transform infrared

Differential scanning calorimetry

U/V Visible spectroscopy

Thermo gravimetric analysis

Question 7 of 10

Question 8 of 10

8. Small molecules which combine to form polymer are called ____________

Resins

Plastic

Blocks

Monomers

Question 8 of 10

Question 9 of 10

9. The functionality of ethylene glycol is ____________

Question 9 of 10

Question 10 of 10

10. Which scientist first discovered that rod cells contain rhodospin?

Franz Boll

Andrew Boll

Benjamin Franklin

Robert Lewis

Question 10 of 10