Chemistry MCQs

Page No. 89

95% ethanol is called_________________?


amethylated spirit

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bwood spirit

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crectified spirit

✓


dabsolute alcohol

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View Answer rectified spirit

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


aFiltration

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bSublimation

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cCrystallization

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dSolvent extraction

✓


View Answer Solvent extraction

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


avapourization

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bsolvent extraction

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cfiltration

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dcrystallization

✓


View Answer crystallization

Sintered crucible is made up of________________?


aplastic

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bglass

✓


cporcelain

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dfiber

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View Answer glass

Gooch Crucibles are made up of________________?


aplastic

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bfibre

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cporcelain

✓


dsteel

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View Answer porcelain

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


aInsoluble particles

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bresidue

✓


ccrystals

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dmud

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View Answer residue

Estimation of amounts of different components in a sample is________________?


aQuantitative analysis

✓


bQualitative analysis

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cStochiometery

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dPhysical chemistry

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View Answer Quantitative analysis

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


aStoichio chemistry

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bPhysical chemistry

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cAnalytical chemistry

✓


dQuantum chemistry

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View Answer Analytical chemistry

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


aAdsorption chromatography

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bAscending chromatography

✓


cRadial chromatography

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dDescending chromatography

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


aMelting

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bSublimation

✓


cDecomposition

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dCondensation

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View Answer Sublimation

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