Entry Test MCQ :: Experimental Techniques

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11.

Estimation of amounts of different components in a sample is

A.	Quantitative analysis	B.	Qualitative analysis
C.	Stochiometery	D.	Physical chemistry

12.

The technique used to separate components of mixture in solid phase.

A.	Crystallization	B.	Filtration
C.	Sublimation	D.	Solvent extraction

13.

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

A.	Insoluble particles	B.	residue
C.	crystals	D.	mud

14.

Size of filter paper is selected according to the amount of

A.	solution	B.	amount of insoluble solute
C.	amount of soluble solute	D.	Amount of solvent

15.

Gooch Crucibles are made up of

A.	plastic	B.	fibre
C.	porcelain	D.	steel

16.

Rate of filtration can be increased by applying gentle suction

A.	Gooch crucible	B.	Filter paper
C.	Sintered crucible	D.	All of the above

17.

Sintered crucible is made up of

A.	Plastic	B.	glass
C.	porcetain	D.	fiber

18.

The tip of funnel should touch the wall of the breaker in order to avoid

A.	Inconsistent flow of filtration	B.	splashing
C.	premature crystallization	D.	all of above

19.

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

A.	vapourization	B.	solvent extraction
C.	filtration	D.	crystallization

20.

In crystallization if the solvent is inflammable then direct heating is

A.	needed	B.	avoided
C.	depends on temperature	D.	crystallization does not involve heating