Tag: types of solutions

Questions Related to types of solutions

Example of liquid-liquid mixture is :

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. oil in water

  2. muddy water

  3. smoke

  4. steel

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Correct Option: A

Which among the following statement(s) is/are true?

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. Brass is an element

  2. Dry ice is a mixture

  3. Aerated drink, e.g., coca cola is a mixture

  4. Diesel is a mixture

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Correct Option: C,D
Explanation:

A ) Brass is an alloy made of copper and zinc.
B) Dry ice, sometimes referred to as "cardice" (chiefly British chemists), is the solid form of carbon dioxide, so it is a compound.
C) Aerated drink would be anything that would have fizz (gas) filled in it. For example, your pepsi, coke, thums up, mirinda etc.
D) Diesel is mixture of many hydrocarbons.
Options C & D are correct.

In a mixture, constituents exhibit:

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. similar properties

  2. only those properties which are characteristic to the mixture.

  3. their own properties

  4. no properties

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Correct Option: C
Explanation:

Impure substances are commonly called mixtures. A mixture is a material containing two or more elements or compounds that are in close contact and are mixed in any proportion. The constituents of mixtures exhibit their individual properties. These constituents can be separated by physical means.

The alloy bronze contains Copper and Tin. This is a:

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. homogeneous mixture

  2. heterogeneous mixture

  3. solid solution of two immiscible metals

  4. both A and B

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Correct Option: D
Explanation:

Generally, an alloy is a mixture of two or more elements, at least one of which is a metal, and which exhibits metallic bonding characteristics. It may be either homogeneous (eg a solid solution; i.e. single phase; e.g brass) or heterogeneous ( a mixture of metallic phases e. g. Steel— the iron/carbon system) 

Smoke is an example of:

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. liquid-in-gas mixture

  2. gas-in-solid mixture

  3. solid-in-gas mixture

  4. gas-in-liquid mixture

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Correct Option: C
Explanation:

Liquid in gas $ex>$ Fog,Mist,cloud.

Gas in solid $ex>$Foam rubber.
Solid in gas $ex>$Smoke,dust.
Gas in liquid $ex>$Froth,soap lather.




Column II gives method to separate phases mentioned in column I. Match them and select the correct answer from the codes given below.

Column I Column II
(a) Miscible liquids (p) Distillation
(b) Immiscible liquids (q) Crystallization
(c) Pure copper sulphate  from an impure sample (r) Sublimation
(d) Salt and ammonium chloride (s) Separating funnel
chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. (a) - (q), (b) - (s), (c) - (p), (d) - (r)

  2. (a) - (p), (b) - (s), (c) - (q), (d) - (r)

  3. (a) - (r), (b) - (s), (c) - (p), (d) - (q)

  4. (a) - (r), (b) - (s), (c) - (q), (d) - (p)

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Correct Option: B
Explanation:

Sublimation is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.
Salt and ammonium chloride can be separated using this.
Crystallization is also a chemical solid-liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs.
Pure copper sulphate from an impure sample.
Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture.
A separating funnel is a glass funnel with a tap at the bottom. A separating funnel is a separation technique that is used for two liquids that do not dissolve in each other.

A gray solid when heated vaporised to form pure white crystals on the cooler parts of the test tube and heavily, black solid as the residue. It is likely that the original solid is :

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. an element

  2. a metal

  3. a pure compound

  4. a mixture

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Correct Option: D
Explanation:

Heating is a physical means to separate a mixture of two substances which are not chemically together as in a compound so they are separated by heating.

On the basis of composition of matter, milk is considered to be:

chemistry composition of matter classification of mixtures mixtures: examples and properties types of solutions

  1. a pure substance

  2. an impure substance

  3. an element

  4. a compound

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Correct Option: B
Explanation:

An impure substance is a substance that contains two or more elements or compounds that are not bonded chemically . So Milk is an impure substance .

We separate mixtures to:

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. remove unwanted components

  2. to get pure substances

  3. both the $A$ and $B$

  4. none of the above

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Correct Option: C

In a mixture, constituents exhibit:

chemistry separation of substances classification of mixtures mixtures: examples and properties types of solutions

  1. similar properties

  2. only those properties which are characteristic to the mixture

  3. their own properties

  4. no properties

Show answer
Correct Option: C
Explanation:

In a mixture constituents exhibit their own individual property.