Chemistry MCQs

Page No. 89

95% ethanol is called_________________?


amethylated spirit


bwood spirit


crectified spirit


dabsolute alcohol


View Answer rectified spirit

Which of the following technique is simple and efficient to purify a substance____________________?


aFiltration


bSublimation


cCrystallization


dSolvent extraction


View Answer Solvent extraction

Separation of a solid from its hot saturated solution by cooling is called__________________?


avapourization


bsolvent extraction


cfiltration


dcrystallization


View Answer crystallization

Sintered crucible is made up of________________?


aplastic


bglass


cporcelain


dfiber


View Answer glass

Gooch Crucibles are made up of________________?


aplastic


bfibre


cporcelain


dsteel


View Answer porcelain

The solid which is left over the filter paper as a result of filtration_________________?


aInsoluble particles


bresidue


ccrystals


dmud


View Answer residue

Estimation of amounts of different components in a sample is________________?


aQuantitative analysis


bQualitative analysis


cStochiometery


dPhysical chemistry


View Answer Quantitative analysis

Branch of chemistry that deals with the complete qualitative and quantitative analysis of a substance is___________________?


aStoichio chemistry


bPhysical chemistry


cAnalytical chemistry


dQuantum chemistry


View Answer Analytical chemistry

A technique of partition chromatography in which the solvent is in a pool at the bottom of container_______________?


aAdsorption chromatography


bAscending chromatography


cRadial chromatography


dDescending chromatography



A substance having very high vapour pressure at its melting point on heating will show_______________?


aMelting


bSublimation


cDecomposition


dCondensation


View Answer Sublimation

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