PPSC Chemistry Part III Inorganic Chemistry Online Test With Answers

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PPSC Chemistry Part III Inorganic Chemistry Online Test

Sr. # Questions Answers Choice
1 In the metallurgy of iron, when limestone is added to the blast furnace, the calcium ion ends up in. Slag Gangue Metallic calcium Calcium carbonate
2 Pick out incorrect statemtn about K2r2O7 It oxidizes acidified solution of H2S to S It oxidizes Ki TO i2 It oxidizes HCl to Cl2 It gives oxygen, when treated with cold conc. H2SO4
3 Pick out the incorrect statement about K2Cr2O7 It is thermally stable It dissolves in alkali to form chromate It oxidizes acidified FeSO4 solution to Fe2(SO4)3 It is used as cleansing agent for glassware, etc. when mixed wiht cold conc. H2SO4
4 The atomic number of potassium is 19 and that of mangness is 25 Although the colour of MnO4 is dark violet yet the K+ is colourless this is due to the fact that. Mn is a transition element while K+ is not [MnO4]- is negatively charged while K+ has positive charge The effective atomic number of Mn is [MnO4]- is 26: while for K+ the atomic number is 18 The Mn is a high positive oxidation state allows charge transfer transitions.
5 The secondary valency of Conc. CoCl3. 6NH3. 2 4 6 8
6 If the absorbed light is green the transmitted light will be Purple Orange Violet Black
7 [Ti(OH2)6]3+ gives colour Green Red Purple Blue
8 The maximum absorption in [Ti(OH)2)6 3+ take place at wavelength of. 4000 A<sup>o</sup> 5000 A<sup>o</sup> 6000 A<sup>o</sup> 10000 A<sup>o</sup>
9 The solution of the transition metal complexes having one or more unpaired electrons in the d-orbital are. Coloured Colourless White None of above
10 When metal orbital are rotated in octahedral field the following representation obtained. t2 g + lg a1 g t 1 u All above
11 CFSE for d7 ion is. 0.8 -0.8 -1.8 1.8
12 Which are not considered member of d-block elements. Zn Cd Hg All above
13 The common ligands can be arranged in order of their increasing splitting power to cause d-orbitals splitting. This series is called as. Electro-chemical Spectro -chemical Physico-chemical Spectro -electrical
14 Ao or 10 Dq is called crystal field. Energy Splitting energy Stabilization energy None of above
15 The energy gap between tag and eg sets in denoted by A- 10 Dq Both A and B None of above
16 In group theory the triple degenerate set is denoted by eg t2g e2g tg
17 CFT can very well explain Color Magnetic properties Spectra of transition metal All
18 On the basic of CFT the bonding between the metal and ligand is totally Ionic Covalent Coordinate Metallic
19 In 1952 who popularized the use of CFT for inorganic chemist Bethe Orge Van Vleck Werner
20 CFT was originally applied to. Ionic crystal Liquid crystal Solid crystal All above
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