Question # 1

A complete chemical Characterization of a compound must include:

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Qualitative analysis

Chemical analysis

Quantitative analysis

None of above

Naphthalene, iodine and NH_{4 can :}

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Sublime.

Both (a) and (c).

Crystallize.

None of above.

The sample being analyzed is called:

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Electrolyte

Residue

Undue

Filtrate

The solid remained on filter paper during filtration is called the

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Substance

Residue

Undue

Filtrate

The tip of the funnel should touch the side of the beaker in order to avoid :

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Splashing.

Leakage.

Mixing.

Contamination.

The solid remained on filter paper during the filtration is called the :

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Substance.

Residue.

Undue.

Filtrate.

Chromatography is derived from Greek word 'Khromatos' means:

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Type writting

Printing

Color writing

Writing

Analytical chemistry is the science of

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Chemical characterization

Physical characterization

Biological characterization

Biochemical characterization

The filtration process is used to separate solid from

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Liquid

Gas

Solid

All of above

Solvent extraction is an unstable, Process and it is called by:

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The amount of solute

Distribution law

The amount of solvent used

Law of mass action

In chromatography, the point at which solvent maximum rises called:

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Solvent front

Base line

Element

Chromatogram

The detection of functional group is called:

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Numerical analysis

Qualitative analysis

Quantitative analysis

Combustion analysis

The solution left after the formation of crystals is called :

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Residue.

Filtrate.

Mother liquor.

None of these.

Direct conversion of solid intro vapours is called:

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Crystallization

Sublimation

Obligation

Vapourization

The liquid obtained after passing the mixture through filter paper is termed as :

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Extract.

Residue.

Filtrate.

Sample.

Estimation of Na in sea water is an example of :

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Numerical analysis.

Qualitative analysis.

Quantitative analysis.

None of above.

Gooch crucible is made of:

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Brass

Porcelain

Bronze

.Gold

The tip of the funnel should touch the side of the beaker in order to avoid

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Splashing

Leakage

Mixing

Contamination

Which one of the following substance is use as decolonizing agent

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Asbestos

Animal charcoal

conc, H₂SO₄

Silica gel

The liquid obtained after passing the mixture through filter paper is termed as:

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Extract

Residue

Filtrate

Sample

Solvent extraction method is a particularly useful technique of separation when the product to be separated is:

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non-volatile or thermally unstable.

volatile or thermally stable.

non-volatile or thermally stable.

volatile or thermally unstable.

Identification of a substance, determination of its structure an quantitative analysis of its composition are the aspects covered by:

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Modern analytical physics.

Mechanical chemistry.

Biochemistry.

Modern analytical chemistry.

Fluted filter paper is used to:

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Decrease rate of filtration

Increase rate of filtration

Maintain rate of filtration

None of above

A complete chemical characterization of a compound must include

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Qualitative analysis

Chemical analysis

Quantitative analysis

Both a and c

The tip of funnel should be 1 or 2cm larger than the circle of the

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Beaker

Solid

Filter paper

Liquid

95% ethanol is called:

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Rectified other

Diesel

Rectified spirit

Petrol

Sintered glass is porous material used for:

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Absorption

Decoration

Filtration

All of above

A filtration process could be very time consuming if it were not aided by a gentle suction which is developed:

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If the paper covers the funnel up to its circumstances

If the paper has got small sized pores in

If the stem of funnel is large so that it dips in to filtrate

If the paper fits tightly.

Which one of the following substances is used to decolourizing agent

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Abestos

Animal charcoal

conc. H2SO4

Silica gel

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