Chemistry MCQs

Page No. 7

The average salinity of sea water is________?


a3%


b3.5%


c2.5%


d2%


View Answer 3.5%

Tetraethyl lead is used as______?


aPain killer


bFire Extinguisher


cMosquito Repellent


dPetrol Additive


View Answer Petrol Additive

Electric bulb filament is made of__________?


aCopper


bAluminium


cLead


dTungsten


View Answer Tungsten

Oxidation state +1 for phosphorous is found in___________?


aH3PO3


bH3PO4


cH3PO2


dH2P2O7


View Answer H3PO2

SO2 reacts with Cl in sunlight to form__________?


aSulphur dioxide


bSulphuryl chloride


cSuphanyl chloride


dAll the above


View Answer Sulphuryl chloride

Argon gas was discovered by_______?


aRayleigh


bRamsay


cLockerey


dDalton


View Answer Ramsay

The number of lone pairs in XeOF4 is_________?


a0


b1


c2


d3


View Answer 1

The O-O linkage is present in__________?


aH2S2O3


bH2SO8


cH2S4O6


dH2S2O6


View Answer H2SO8

Poisonous gas present in the exhaust fumes of a jet plane is__________?


aFlurocarbon


bCarbon monoxide


cMethane


dCH2


View Answer Carbon monoxide

The formula C6H5-CO-CH3 represents_______ ?


aAcetone


bAcetic acid


cAcetophenone


dPhenyl acetate


View Answer Acetophenone

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