INORGANIC PAPER XII - CBSE-2017

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                             TEST . XII –CBSE-CHEMISTRY (043),          MM=50
          SURFACE,CO-ORDINATION,ISOLATION,D-BLOCK AND P-BLOCK
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Q1.Why pcl5 is ionic in solid state.?                                                                           2
Q2.Why H20 is liquid and H2S is gas.                                                                        2
Q3.Write disproportation reaction of phosphorous.                                                 2
Q4.Why KMnO4 is colour yet it doesn’t have electron in d orbital.?                       2
Q5.Write only chemical reaction for the preperation of potasium permangnate and potasiun dichromate.?                                                                                                          2
Q6.Write the product  in a rection when XeF6 react with 2H2O.                              2
Q7.What is role of NaCN in froath flatation process.?                                            2
Q8.What is leaching.Give example reaction of it with extraction of silver.?                   2
Q9.What is van arkel process.?                                                                                 2
Q10.Defference between calcination and roasting.?                                                       2
Q11.What is electrophoresis,&coagulation.?                                                           2
Q12.What is instability constant.How it is related to stepwise and overall stabilty costant.?                                                                                                                       2
Q13.Why [ Fe(CN)6]4+ is inner octahedral but Fe[cl6]4+ is outer octahedral.?                 2
Q14.Write IUPAC name of the following.                                                                           1
          K3[Cr(OH)3cl2]
Q15.What is CFSE.How its magnitude change with strength of ligands.?           2
Q16.Drow the splitting diagrame of [Fe(cl)6]4+.?                                                       2
Q17.What is coordinate isomerism give an example.?                                           2
Q18.Drow the structure of  H2S2O8,   H3PO4,  XeOF4.?                                          3
Q19.Why Icl3  is more reactive then I2.                                                                      2
Q20.SF6 is nknown but Scl6 is not known.?                                                              2
Q21.Write the impotant properties of white phosphorous.?                                             2
Q22.What is the catalyst used for the preperation of sulphuric acid from contact process. And give all reaction.?                                                                                 2
Q23.Why all bond in Pcl5 is not equal.?                                                                    2
Q24.Why only Xenon make compound with O na F from innert gases but other doesn’t.?                                                                                                                       2

Q25.What is difference between covalency and oxidation state taking example of N in N2O5.?                                                                                                                           2

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