IGCSE O Level Chemistry MCQs - Chapter 9

Methods of purification MCQ (Multiple Choice Questions) PDF - 2

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The MCQ: While forming crystals, it is important to; "Methods of purification" App Download Android & iOS (Free) with answers attach the gas syringes to collect fumes, evaporate to dryness to get purest possible crystals, not evaporate the water of crystallization and use high flames to study online certification courses. Practice dissolving, filtering and evaporating quiz questions, download Apple Book (Free Sample) for free online college classes.

Methods of purification Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: While forming crystals, it is important to

A) evaporate to dryness to get purest possible crystals

B) attach the gas syringes to collect fumes

C) not evaporate the water of crystallization

D) use high flames

MCQ 7: Condensed solid produced during sublimation is

A) crystals

B) sublimate

C) residue

D) insoluble

MCQ 8: Larger crystals can be obtained if the

A) evaporation is at high temperature

B) evaporation rate is slow

C) evaporation rate is fast

D) evaporation speed remains stable

MCQ 9: Chromatography can be used to

A) form mixtures

B) change mixture compositions

C) separate mixtures into pure substances

D) none of above

MCQ 10: The phase that never gains in sublimation is

A) solid

B) liquid

C) gas

D) vapors

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