Chemistry – Class 12 Mock Test 6

10%

Question 1 of 10

1. The heating of 1-Chlorobutane along with alcoholic KOH results in ________

elimination of hydrogen from γ-carbon atom

elimination of hydrogen from β-carbon atom

no reaction

elimination of hydrogen from α-carbon atom

Question 1 of 10

Question 2 of 10

2. The oxidation of trichloromethane results in the formation of a poisonous gas called ________

carbonyl chloride

hydrogen sulphide

phosphine

carbon monoxide

Question 2 of 10

Question 3 of 10

3. Which of the following is not a harmful effect of DDT?

Cannot be metabolized by animals

Highly toxic towards fish

Causes air pollution

It is non-biodegradable

Question 3 of 10

Question 4 of 10

4. Identify ‘X’ from the reaction shown.

Concentrated H₂SO₄

Dilute H₂SO₄

Concentrated HNO₃

Dilute HNO₃

Question 4 of 10

Question 5 of 10

5. When excess chlorine is used in electrophilic substitution of toluene, which of the following dichloroarenes are formed?

ortho and meta

ortho, meta and para

meta and para

ortho and para

Question 5 of 10

Question 6 of 10

6. What is formed when ethyl magnesium bromide reacts with water?

Ethanol

Ethane

Magnesium hydroxide

Grignard reagent

Question 6 of 10

Question 7 of 10

7. What is the correct order of reactivity of the following haloacids with a given alcohol?

HI > HCl > HBr

HI > HBr > HCl

HCl > HBr > HI

HBr > HCl > HI

Question 7 of 10

Question 8 of 10

8. What is the general formula for an aliphatic alcohol? (R=alkyl group)

R-H

R-CHO

R-OH

R-COOH

Question 8 of 10

Question 9 of 10

9. Identify the correct order of decreasing field strength of the neutral ligands.

CO, en, H₂O, NH₃

CO, en, NH₃, H₂O

en, CO, NH₃, H₂O

en, CO, H₂O, NH₃

Question 9 of 10

Question 10 of 10

10. Which is the largest halogen atom?

Bromine

Iodine

Fluorine

Chlorine

Question 10 of 10