JAC Board Chemistry Model Paper: 12th students must check the model paper to get good marks in the exam

JAC Board 12th Model Paper Chemistry: Students who are preparing for 12th exam in Jharkhand Board can check the model paper through the official website. If students want to score well in Chemistry then start preparation according to model papers. Students can also check the model paper through the official website of Jack Board. Date sheet of jack board has been released.

Model Question Paper
Model Question Paper
Set- 3

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Department – A
1. Calculate the order of the reaction whose rate expression is as follows:
r = K[A]2[B]

2. Write an application of exploitation.
Write one importance of absorption.

3. Write the oxidation number of Cu in [Cu(NH3)6 ]Cl3
3. [Cu(NH3)6 ]Find the oxidation number of Cu in Cl3.

4. Write the IUPAC name of CH3CH=CHCH2OH
4. Write the IUPAC name of CH3CH=CHCH2OH.

5. Which vitamin deficiency causes night blindness?
5. Which vitamin deficiency causes night blindness?

6. Write any one use of PVC.
6. Write any one use of PVC

7. Give an example of pain reliever.
7. Give an example of a painkiller.

Department – B
8. Calculate the half-life period for a first-order reaction with a rate constant of 200 s-1
8. Calculate the half-life of a first-order reaction with a rate constant of 200 s-1.

9. Explain the following terms:
(I) Dialysis (II) Tyndall effect
9. Explain the following terms:
(I) Dialysis (II) Tyndall effect

10. Write the following formulas using IUPAC rules:
(I) Potassium tetracyanonickelate
(II) Hexaamminecobalt
(III) Sulphate
(IV) Tetracarbonylnickel
10. Based on IUPAC rules, write the formula for the following –
(I) Potassium tetracyanonickelate (II)
(II) Hexaminecobalt
(III) Sulphate
(IV) Tetracarbonyl nickel

11. Define the following:
a) Peptide linkage b) Denaturation of proteins
Define the following:
a) Peptide linkage b) Denaturation of proteins

Also Read-
JAC Board Biology Model Paper: Jharkhand Board Exam Model Paper Released, 12th Students Check
Schools Reopen: Schools are about to open, check when your child has to go for studies

12.Write any two differences between thermoplastics and
Thermosetting plastics with examples.
12. Write two differences between Thermoplasting and Thermosetting with examples.

13.Write in brief with one example in each case:
(I) Antiseptics (II) Tranquilizers
13. Write in brief with one example of each:
(I) Antiseptic (II) Tranquilizer

Section – C
14.How is sulfuric acid prepared by contact process? What it interacts with:
a) Cu b) C
How is sulfuric acid prepared by contact process? Write its reaction with the following reagents:
A) Q B) C

15. Draw the structure of the following compounds:
(I) H2S2O8 (II) XeO3 (III) XeOF4 (IV) SF4 (V) S8
Draw the structures of the following compounds:
(I) H2S2O8 (II) XeO3 (III) XeOF4 (IV)
SF4(V)S8

16. Write short notes on the following:
A) Hoffman bromamide degradation reaction
b) Coupling reaction
c) Cannizzaro’s reaction
16. Write notes on the following:
A) Reaction following Hoffman Bromamide
b) Coupling reaction
c) Cannizzaro reaction

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