Trending ▼   ResFinder  

12th Chemistry Practice paper-02

3 pages, 69 questions, 9 questions with responses, 9 total responses,    0    0
Jen
-,  .  		+Fave Message
ProfileTimelineUploads
 Home > the_unknown >

Formatting page ...

CHEMISTRY Class II PreUni Plus 2016-2017 Practice Paper - 02 Max. Marks Duration Date 70 3 hours 01-02-2017 Instructions 1. The questions paper has four parts: A, B, C and D. All parts are compulsory. 2. Write balanced chemical equations and draw labeled diagrams wherever required. 3. Use log tables and the simple calculator if necessary (Use of scientific calculators is not allowed). PART - A I. Answer the following questions (one mark each) [10 1 = 10] 1. Out of 0.1 molal aqueous solutions of glucose and sodium chloride respectively. Which one will have high boiling point? 2. What is the significance of Henry s law constant, KH? 3. State Kohlrausch s law for independent migration of ions. 4. What must be the minimum energy required by the reactants to undergo chemical reaction? 5. How does adsorption of a gas on a solid vary with temperature? 6. What is the role of iodine in the refining of titanium? 7. Write the structure of XeF2. 8. Why is chloroform kept in coloured bottles? O 9. Given: CHO + C CH3 NaOH A. heat Identify the product A. 10. Name the nitrogenous base present in RNA but not in DNA. PART - B II. Answer any FIVE of the following questions (two marks each) [5 2 = 10] 11. Write two differences between Frenkel and Schottky defects. 12. Show that the half life period for a first order reaction is independent of the initial concentration of the reactants. 13. The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 Scm 1. Calculate its molar conductivity. 14. Name the element in the 3d series that (a) shows maximum oxidation states (b) is diamagnetic [1 + 1] 15. How is picric acid obtained from phenol? Write chemical equation for the reaction. 16. Explain Rosenmund s reduction with an example. 17. What are tranquilizers? Give an example for neurotransmitters. 18. Explain saponification with an example. 2P1617CPP2 1

Formatting page ...

Top Contributors
to this ResPaper
(answers/comments)


American Badass
(9)

Formatting page ...

 

  Print intermediate debugging step

Show debugging info


 

 

© 2010 - 2024 ResPaper. Terms of ServiceContact Us Advertise with us

 

the_unknown chat