Chemistry MCQs

Page No. 104

Which of the following can be used as anti-knocking agent ?


aPbCl2


b(C2H5)4 Pb


c(C2H5)2 Pb


dall of the above


View Answer (C2H5)4 Pb

The metallic sound produced by engine due to the pre-ignition of fuel is called _______________?


aknocking


breforming


ccracking


dboth B & C


View Answer knocking

The precess in which larger molecule with higher molecular weight breaks down into smaller moleucles with lower molecular weight____________________?


apolymerization


bpyrolysis


cisomerism


dno such process occurs


View Answer pyrolysis

Methane is used in power generation in chemical industries being a__________________?


anatural gas


bgood caloric value


ccheaper


dall


View Answer cheaper

Organic compounds are soluble in ____________________?


apolar solvent


bnon-polar solvent


calkalies


dwater


View Answer non-polar solvent

Compounds having same molecular formula but differ in structural formula are called __________________?


apolymer


bmonomer


cisomer


dallotropes


View Answer isomer

Chemical properties of first member of homologous series with respect to other members are_________________?


asame


bdifferent


cdepends upon number of C atoms


ddepends upon number of H atoms


View Answer same

A double bond consists of __________________?


aTwo sigma bonds


bTwo Pi bonds


cOne sigma and one Pi bonds


dOne sigma and two Pi bonds



According to vital force theory_______________?


aorganic compounds can be synthesized from inorganic compounds


borganic compounds cannot be synthesized from inorganic compounds


corganic compounds can be synthesized by animals


dorganic compounds can be synthesized by plants



Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have________________?


aLow melting points


bLow vapour pressure


cHigh boiling points


dHigh electrical conductivity



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