CHEMISTRY | QUESTION MODEL HSEB QUESTION MODEL OF CHEMISTRY GRADE : 11 FOR : 2070 Exam Oriented Model Question Time : 3 hrs Full Marks : 75 Pass Marks : 27 Group ‘A’ Attempt any Fifteen question : 15 X 2 = 30 Q.1. State Law of reciprocal proportion. Q.2. The oxide of an element contains 67.67 % of oxygen and V.D. of its volatile chloride is 79 Q.3. Define surface tension of Liquid. Q.4. Write down important differences between crystalline and amorphous solid. Q.5. What is Pauli’s exclusion principle ? Q.6. Give the values of all four quantum numbers of 11th electron of magnesiou.(At. No. 12) Q.7. What is radioactivity ? Q.8. Write the Lewis structure of (a) H2O2 and (b) HNO3. Q.9. Expalin why HCL has polar character though it has covalent bond. Q.10. State Modern Perodic law. Q.11. How would you show the following reaction is a redox reaction? Mg + Cl2 ---------------> MgCl2 Q.12. State Le-Chateliers principles. Q.13. What are the difference between nascent and molecular hydrogen ? Q.14. name any two oxides of each of the following : (i) amphoteric (ii) neutral. Q.15 What is allotrophy ? Name the lates discover allotrophic from of carbon. Q.16. What is meant by acid rain ? Give one major effect of acid rain. Q.17. Distinguish between flux and slag with one example of each. Q.18. Can sodium be extracted by the electroluysis of aqueous solutions of sodium chloride ? If not why ? Q.19. Define electrophile and nucleophile with an example of each. Q.20. Give IUPAC name of the following compound. (a) CH3-CH(Br)-CH(NH2)-COOH (b) CH3-C(CH3)2-C9OH)H-CH3 Q.21. What is meant by thermal cracking and catalytic cracking ? Q.22. Identify A and B in the following reaction and give therir IUPAC name. Cl2 alc.KOH C2H6 -------------> A---------------------> B. h v ∆
Posted on: Thu, 13 Mar 2014 12:29:41 +0000
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