General Methods of Preparation, Class 12 Chemistry NCERT Solutions

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Chorobenzene is prepared commercially by

Raschig process

Deacon process

Etard's process

Dow's process

Your comments:

Question 1 of 10

2. Which of the following is major product of following reaction?
CH₃CH = CH₂ + HBr

2-Bromo propene

2-Bromo propane

1-Bromo propene

1-Bromo propane

Your comments:

Question 2 of 10

3. Which of the following compound will not give addition reaction with bromine?

Propene

1-Butene

Iso butane

Iso butene

Your comments:

Question 3 of 10

4. This reaction is known as:

Wurtz reaction

Frankland reaction

Fittig reaction

Finkelstein reaction

Your comments:

Question 4 of 10

5. What is the order of reactivity of following halogen acids on alcohols?
HI, HBr, HCl

HI < HBr < HCl

HI > HBr > HCl

HI > HCl > HBr

HBr > HCl> HI

Your comments:

Question 5 of 10

6. Which of the following is formed by Swarts Reaction?

Alkyl iodide

Alkyl fluoride

Alkyl bromide

Alkyl chloride

Your comments:

Question 6 of 10

7. On reacting ethene with HCl we get:

Chloroethane

Chloropropane

Chloromethane

None of these

Your comments:

Question 7 of 10

8. Which of the following is formed in reaction mechanism of halogenation of alkanes in presence of UV light?

Carbocation

Carbanion

Diazonium ion

Free radical

Your comments:

Question 8 of 10

9. Which of the following is intermediate in Sandmeyer's reaction?

Diazonium salt

Hydronium ion

Ammonium salt

Nitronium ion

Your comments:

Question 9 of 10

10. Which of the following is the major product of following reaction?
CH3CH = CH2 + HI

2 - iodopropane

1 - iodopropene

1 - iodopropane

2 - iodopropene

Your comments:

Question 10 of 10

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