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

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

Question 2 of 10

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

 Propene

 1-Butene

 Iso butane

 Iso butene

Question 3 of 10

4. This reaction is known as:

 Wurtz reaction

 Frankland reaction

 Fittig reaction

 Finkelstein reaction

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

Question 5 of 10

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

 Alkyl iodide

 Alkyl fluoride

 Alkyl bromide

 Alkyl chloride

Question 6 of 10

7. On reacting ethene with HCl we get:

  Chloroethane

 Chloropropane

 Chloromethane

 None of these

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

Question 8 of 10

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

 Diazonium salt

 Hydronium ion

 Ammonium salt

 Nitronium ion

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

Question 10 of 10

 Loading…