Chemistry MCQs

Page No. 5

The type of hybridisation of boron in diborane is______?


aSp- hybridisation

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bSp2- hybridisation

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cSp3- hybridisation

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dSp3D2- hybridisation

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View Answer Sp- hybridisation

Which of the following element has the maximum electron affinity_____?


aCl

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bBr

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cI

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dF

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View Answer Cl

The structure of H2O2 is_______?


aPlanar

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bNon- polar

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cSpherical

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dLinear

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View Answer Non- polar

The volume strength of 1.5 N H2O2 solution is_______?


a8.8

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b4.8

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c8.4

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d5.2

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View Answer 8.4

A 10 volume solution of H2O2 means_______?


a10 grams of solution of H2O2 liberates 10 mL of O2 at STP

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b10 gram equivalents of H2O2 liberates 10 mL of O2 at STP

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c10 litres of H2O2 liberates 19 mL of O2 at STP

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d1mL of solution of H2O2 liberates 10 mL of O2 at STP

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Electronic Configuration of Calcium (Ca) atom may be written as________?


aNe, 4p2

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bAr, 4s2

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cNe, 4s2

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dKr, 4p2

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View Answer Ar, 4s2

Ce58 is a member of__________?


as-block

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bp-block

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cd-block

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df-block

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View Answer f-block

Basicity of orthophosphoric acid is________?


a2

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b3

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c4

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d5

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View Answer 3

Gypsum is______?


aCaSO4,1/2H2O

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bCaSO4,2H2O

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cCaSO4,4H2O

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dCaSO4,3H2O

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View Answer CaSO4,2H2O

In melting of iron, which of the following reactions takes place in Bladt Furnace at 400°C- 600°C________?


aCaO+ SiO2——> CaSiO3

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b2FeS+3O2——–> 2Fe+ SO2

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cFeSiO3———> FeSiO3

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dFe2O3+ 3CO——–> 2Fe+ 3CO2

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