12th Class Chemistry Previous Paper Set-C Jammu JKbose PDF

12th Class Chemistry Previous Paper Set-C Jammu JKbose PDF

12th Class Chemistry Previous Paper Set-C Jammu JKbose PDF

(Long Answer Type Questions)

1. KMnO4 acts as a strong oxidising agent in acidic, basic and neutral medium. Give two example in each case.

Or

Describe briefly the oxidation, State of 3d-transition series elements along with the paramagnetic behaviour of the ions/metals of this series.

2. How can aromatic aldehydes and ketones be prepared by the following reactions?

• Reimer-Tieemann reaction
• Firdel-Crafts reaction

Or

What are carboxylic acids? Describe the general methods of preparation of carboxylic acids.

3. State and explain Faraday’s laws of Electrolysis.

Or

What are electrochemical cells? Describe briefly fuel cell.

4. How is Nitric acid prepared from Ostwald’s process? Give its reaction with ZInc and Iron.

Or

What are interhalogen compound? Why are these names so? Give structure of CIF3 and CIF5.

(Short Answer Type Questions)

5. What is Arrhenius equation? Discuss its importance.
6. 40gm of NaOH are presented in one deciliter of solution. Calculate mole fraction of NaOH.
7. Explain with suitable example the dielectric properties of solids.
8. Describe the main Postulates of VerniWhat are interhalogen compound? Why arethese names so? Give structure of CIF3 and CIF5.
   (Short Answer Type Questions)
9. Name the oxy-acids of Phosphorous. Write their structure.
10. Explain the following:

• Peptide bond
• Denaturation of Proteins.

11. Give the reaction of Ethyl amine with:

• Grignards reagent.
• Carbon disulphide

12. What are Phenols? How do they differ structurally from aromatic alcohols?

(Very Short Answer Type Questions)

13. How is Bakelite synthesized?
14. Why is the time saved when cooking is done in a pressure cooker?
15. What are Antiacids? Give example.
16. Distinguish between multimolecular and Macromolecular colloids.
17. Briefly explain Hardy Schulze rule in colloids.
18. Explain smelting with chemical equations in the extraction of copper from Pyritc ore.
19. Why are injectable medicines dissolved in saline water before being administered?
20. Which can be hydrolysed easily Ethylc bromide or Bromobenzinc and why?

(Objective Type Questions)

For Objective type Questions Download Paper PDF
12th Class Chemistry Previous Paper Set-C Jammu JKbose PDF

Ek like toh banta hai

OR

More 12th class Paper