Solutions to Booster Test [JEE-2016]

Jun 17th, 2015
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26.(C) First ionisation enthalpies : 27.(D) Ionic radius increases with addition of and decreases with removal of . 28.(C) Halogen B (Z) Noble gas C (Z + 1) Alkali metal D (Z + 2) Alkaline earth metal 29.(C) 30.(B) 31.(B)

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Vidyamandir ClassesSolutions to Booster Test [JEE-2016]CHEMISTRY26.(C) First ionisation enthalpies : F N C Be B27.(D) Ionic radius increases with addition of e and decreases with removal of e .28.(C)A(Z 1)HalogenB (Z)C (Z + 1)D (Z + 2)Noble gasAlkali metalAlkaline earth metal129.(C)31.(B)30.(B)r H 121211NNNdiss H Eg H Hyd H(240) 349 381 61032.(A) For smaller ions, lattice energy is greater.33C)SF2 , SF4 and SF6 have sp3 , sp3d and sp3d 2 respectively.34.(A) XeF6 :Oxidation state +6Hybridisation : sp3d 3Shape : distorted octahedral35.(D) NH3 bond angle 107PH3 bond angle 93.5BCl3 bond angle 120C36.(A) SF4Lone pair = 1CF4Lone pair = 0XeF4VMC/JEE-20161Booster TestVidyamandir Classes37.(D)H2O, N H4 , SO42 and CrO 4 are sp3 .38.(D)I 3 has 3 lone pairs of eCrO3 has 1 lone pairXeF4 has 2 lone pairsSF4 has 1 lone pairs39.(C) Ice has a cage-structured network whereas.H2O has sheet like network.Due to this, ice has some voids in its structure leading to lesser density.40.(B)Temperature, viscosity and surface tension are intensive.41.(A)N2 3H2H 93.6 kJ / mol2NH3Since the reaction is exothermic, so on lowering the temperature, concentration of NH 3 increases.Also by taking excess N2 or H2, NH3 increases.42.(C) Initially P = 1 atmn

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