Question # 1

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 sample being analyzed is called:

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Electrolyte

Residue

Undue

Filtrate

The comparative rates at which the solutes move in paper chromatography, depend on:

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the size of per sued.

R_f values of solutes

temperature of the experiment

size of the chromatography tank used.

Direct conversion of solid intro vapours is called:

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Crystallization

Sublimation

Obligation

Vapourization

A complete chemical Characterization of a compound must include:

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Qualitative analysis

Chemical analysis

Quantitative analysis

None of above

The reagents like KMnO_{4 and HCL cannot be filtered through Gooch crucible if its base is covered with :}

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Butterfly paper.

Ordinay paper.

Flying paper.

Filter paper.

Estimation of Na in sea water is an example of

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Numerical analysis

Qualitative analysis

Quantitative analysis

None of above

Sintered glass is porous material used for:

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Absorption

Decoration

Filtration

All of above

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.

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

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Splashing.

Leakage.

Mixing.

Contamination.

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

The filtration process is used to to separate solid from :

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Liquid.

Gas.

Solid.

All of above.

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

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Extract

Residue

Filtrate

Sample

95% ethanol is called :

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Rectified ether.

Diesel.

Rectified spirit.

Petrol.

Which one of the following substances is used to decolourizing agent

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Abestos

Animal charcoal

conc. H2SO4

Silica gel

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.

The sample being analyzed is called :

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Electrolyte.

Substance.

Analyte.

All of above.

Which one of the following substance is use as decolonizing agent

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Asbestos

Animal charcoal

conc, H₂SO₄

Silica gel

Direct conversion of solid into vapors is called :

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Crystallization

Sublimation

Obligation

Vaporization.

The detection of functional group is called

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Numerical analysis

Qualitative analysis

Combustion analysis

Quantitative analysis

The filtration process is used to separate solid from

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Liquid

Gas

Solid

All of above

Chromatography is derived from Greek word 'Khromatos' means:

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Type writting

Printing

Color writing

Writing

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

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Solvent front

Base line

Element

Chromatogram

Without proper suction filtration is

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Rapid process.

Fague process.

Slow process.

Useless process.

The solid remained on filter paper during filtration is called the

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Substance

Residue

Undue

Filtrate

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

Estimation of Na in sea water is an example of :

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Numerical analysis.

Qualitative analysis.

Quantitative analysis.

None of above.

Proteins and amino acid can be separated by:

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Filtration

^Sublimation

Chromatography

Suction

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

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Beaker

Solid

Filter paper

Liquid

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