EKLAVYA EDUCATION

1.      Name the defect that shown by crystal of silver bromide. ?   1 2.      The decomposition reaction of ammonia gas on platinum surface has a rate   Constant     k = 2.5 x 10 –4 mol L –1 S –1 .What is the order of the reaction?   1 3.      Give the IUPAC name of the following compound                  C 6 H 5 NHCH 3                                                                                         1 4.      How many octahedral voids are there in l mole of a compound having cubic close packed structure?                                                                                   1 5.      How catalysts increase the rate of reaction?                                                     1               6.      In each of the following pairs of organic compounds, identify the compound Which will undergo SN 1 reaction faster?                                                     2        (a) 2-Isopropyl hexane        (b) 2- Methyl butane

                                                   CLASS - XII                          CHEMISTRY MODEL PAPER – (043)—2017                                               SET-2 Time : Three hour                                                                 Max. Marks : 70 General  Instructions :- 1.      Time: Three Hours                                                                                    Max. Marks: 70      General Instructions:-      1. All questions are compulsory. 2. Question No. 1-5 are very short answer questions and carry 1 mark each. 3. Question No. 6-10 is short answer questions and carries 2 marks each. 4. Question No. 11-22 is also short answer questions and carries 3 marks each. 5. Question No. 23 is value added questions and carry 4 marks. 6. Question No. 24-26 carry 5 marks 7. Use log tables if necessary, use of calculators is not allowed. Q1 . Give an example of artificial sugar which m