EMOT CHEMISTRY QUIZ (Separation of mixture)

A colorful illustration of various laboratory glassware containing mixtures and separation techniques in a scientific environment, with vibrant colors and elements like chromatography paper and distillation apparatus.

EMOT Chemistry Quiz: Separation of Mixtures

Test your knowledge on the separation techniques used in chemistry with our engaging EMOT Chemistry Quiz! This quiz will challenge your understanding of physical and chemical changes, mixtures, and various methods of separation.

Whether you're a student looking to enhance your learning or just curious about chemistry, this quiz offers:

25 multiple-choice questions
Interactive learning experience
Instant feedback on your answers

25 Questions6 MinutesCreated by SeparationScience101

By means of filtration one component can be obtained pure from an aqueous mixture of sodium chloride and

Potassium nitrate

Sand

Lead nitrate

Sugar(glucose)

One of the following techniques can be used to show that chlorophyll pigments is a mixture of chemical compounds and not a single coloured compound

Crystallization

Hydrolysis

Sublimation

Chromatography

Which of the following process does not lead to chemical change

Stirring iron in sulphur (vi) acid

Stirring sodium carbonate in water

Stirring glucose in conc. Sulphur (vi)acid

Titrating an acid against a base

A brand of ink containing Cobalt (ll) , copper (ll) and iron(ll)ions can best be separated into its various components by

Fractional crystallization

Fractional distillation

Sublimation

Chromatography

Which of the following would support the conclusion that a solid sample is a mixture?

The solid can be ground to a fine powder

The density of the solid is 2.2g/dm³

The solid has a melting range of 300°C to 375°C

The solid absorbs moisture from the atmosphere.

Which of the following is a physical change

The bubbling of chlorine into water

The bubbling of chlorine into a gas jar containing hydrogen

The dissolution of sodium chlorine in water

The passing of steam over heated iron

A pure solid usually melts

Over a wide range of temperature

Over a narrow range of temperature

At a lower temperature than the impure one

At the same temperature as the impure one

Chromatography is used to separate components of mixtures which differ in their rates of

Diffusion

Migration

Reaction

Sedimentation

Which of the following is an example of chemical change ?

Dissolution of salt in water

Rusting of iron

Melting of ice

Separating a mixture by distillation

The addition of water to calcium oxide leads to

A physical change

A chemical change

The formation of a mixture

An endothermic change

A mixture of iron and sulphur can be separated by dissolving the mixture in

Steam

Dilute hydrochloric acid

Dilute sodium hydroxide

Benzene

Sieving is a technique used to separate mixtures containing solid perticles

Small sizes

Large sizes

The same size

Different sizes

The chromatographic separation of ink is based on the ability of components to

React with each other

React with solvent

Dissolve in each other in the column

Move at different speeds in the column

Which of the following is a physical change ?

Burning kerosine

Freezing ice-cream

Exposing white phosphorus to air

Dissolving calcium in water

When a solid substance dissapears completely as a gas on heating, the substance is said to have undergone

Evaporation

Distillation

Crystallization

Sublimation

The property used in the industrial preparation of nitrogen and oxygen from air is

Rate of diffusion

Solubility

Density

Boiling point

EMOT CHEMISTRY QUIZ (Separation of mixture)

EMOT Chemistry Quiz: Separation of Mixtures

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