Organic Chemistry Mock Test 4

10%

Question 1 of 10

1. In which form energy is stored in chemical bonds?

Kinetic energy

Thermal energy

Chemical energy

Potential energy

Question 1 of 10

Question 2 of 10

2. What is the IUPAC name of chloroform?

Chloromethane

Dichloromethane

Trichloromethane

Carbon tetrachloride

Question 2 of 10

Question 3 of 10

3. Which of the following terms describes a reaction in where more energy is released by bond formation than is consumed by bond cleavage?

Adiabatic

Isothermal

Endothermic

Exothermic

Question 3 of 10

Question 4 of 10

4. With respect to enthalpy of combustion which of the following is correct?

∆H_rxn = Σ∆H_f (product) - Σ∆H_f (reactant)

∆H_rxn = Σ∆H_f (product) + Σ∆H_f (reactant)

∆H_rxn = Σ∆H_f (reactant) - Σ∆H_f (product)

∆H_rxn = 2 Σ∆H_f (product) - Σ∆H_f (reactant)

Question 4 of 10

Question 5 of 10

5. How would you synthesis the following reaction?

conc. HNO₃ + conc. H₂SO₄

conc. H₂SO₄ + Oleum

anhydrous AlCl₃ + Ph-NO₂

conc. HNO₃

Question 5 of 10

Question 6 of 10

6. Which of the following is not the method of preparation of alkyl halide?

Addition of HX on alkenes

Darzen’s method

Halogenation of alkene

Hydration of alkene

Question 6 of 10

Question 7 of 10

7. Which energy is required for homolytic cleavage?

Quadruplet

Triplet

Doublet

Singlet

Question 7 of 10

Question 8 of 10

8. How the bond dissociation enthalpy changes as one goes along the series of diatomics Li₂, B₂, C₂, N₂, O₂ and F₂?

Increases

Increases then decreases

Decreases

Decreases then increases

Question 8 of 10

Question 9 of 10

9. What will be the product for the given reactant and reagents?

tough-organic-chemistry-questions-answers-q5b

tough-organic-chemistry-questions-answers-q5c

Question 9 of 10

Question 10 of 10

10. Which of the following statements is true about the following two anionic molecules?

I is less basic but more nucleophilic than II

I is less basic and less nucleophilic than II

I is more basic and more nucleophilic than II

I is more basic but less nucleophilic than II

Question 10 of 10