Chemistry MCQs

Page No. 14

The criteria for aromaticity is presence of_________?


aUnsaturations


bCyclic structure


cPresence of 4nπ electrons


dPresence of 4n+2π electrons



Chlorine Cl when attached to benzene has________?


a+1 and +R effect


b-1 and +R effect


c+1 and -R effect


d-1 and -R effect


View Answer -1 and +R effect

Which one of the following is most acidic?


aPhenol


bP-nitrophenol


cO-nitrophenol


dM-nitrophenol


View Answer P-nitrophenol

Which of the following effects best explains that o-nitrophenol is insoluble in water?


aInductive effect


bResonance effect


cIntermolecular H-bonding


dIsomeric effect



The carbon-carbon bond strength is maximum in__________?


aCH3CH3


bCH2=CH2


cBenzene


dCyclohexane


View Answer CH3CH3

Which one of the following is caustic potash?


aNaOH


bKOH


cNaCl


dNaBH4


View Answer KOH

Commercial detergents contain mainly _____________?


aRCOON


bRONa


cRSNa


dROsO3Na


View Answer RCOON

_____________ surfactants perform well over a wide range water hardness and PH?


aCationic


bAnionic


cNonionic


dNeutral


View Answer Nonionic

Polyethylene Glycols are used in the preparation of which type of detergents?


aCationic detergents


bAnionic detergents


cNon-ionic detergents soap


dAll of the above



The by-product of the process of Saponification is___________?


amethanol


bGlycol


cGlycerol


dSodium hydroxide


View Answer Glycerol

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