Tag: types of solutions

Questions Related to types of solutions

Which of the following is not a property of a mixture?

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

  1. Mixtures have definite set of properties

  2. Components in mixture retain their original properties

  3. The parts of mixture can be separated by physical means

  4. Mixtures do not have a sharp melting or boiling point

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Correct Option: A
Explanation:

The important point regarding mixture is that it always retain the original property of its components, so mixture dont have any definite set of properties.

Which of the following is an example of mixture in which various constituents are mixed uniformly?

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

  1. Solution of salt in water

  2. Air

  3. Alloy

  4. All of the above

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Correct Option: D
Explanation:

Solution of salt in water, air, alloy are all examples of homogeneous mixture. They are formed by mixing different elements in to form a mixture which is in single state. Hence they are also called as homogeneous mixture.

What is a mixture?

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

  1. Substance with two or more different particles

  2. Substance that is insoluble

  3. Substance with a single homogenous particle

  4. None of above

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Correct Option: A
Explanation:

A substance which contains two or more different particles is known as mixtures. Example: the Salt solution is made up of two components, salt and water. Therefore, the salt solution is a mixture.


Hence, the correct option is $A$

Which of the following is a type of mixture in which constituent elements are not uniformly distributed?

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

  1. Blood

  2. Salt and water

  3. Bronze

  4. None of the above

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Correct Option: A
Explanation:

Blood is an example of heterogeneous mixture.

Which of the following is a mixture?

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

  1. Air

  2. Alloys

  3. Both A and B

  4. None of above

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Correct Option: C
Explanation:

Air is a homogeneous mixture. However, the Earth's atmosphere as a whole is a heterogeneous mixture. Alloys are made when two or more metals are mixed together. They usually are homogeneous mixtures. Examples include brass, bronze, steel, and sterling silver.

In a mixture of kerosene and water, kerosene forms the:

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

  1. Lower layer

  2. Upper layer

  3. It mixes with water and forms no layer

  4. Data insufficient

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Correct Option: B
Explanation:

When two liquids do not mix, they form two separate layers and are known as immiscible liquids. These two liquids can be separated by using a separating funnel. It will separate the immiscible liquids into two distinct layers depending on their densities. The heavier liquid forms the lower layer while the lighter one forms the upper layer. Kerosene has lower density than water and hence forms the upper layer.

A mixture is a material system made up of two or more different substances which are mixed :

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

  1. chemically

  2. physically

  3. both a and b

  4. none of above

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Correct Option: B
Explanation:

A mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances on which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.

Water is a ____.
Methane is a ____.

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

  1. Compound, element

  2. Element, mixture

  3. Element, compound

  4. Compound, compound

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Correct Option: D
Explanation:

Water and methane are both made up of two different elements. Water is made up of oxygen and hydrogen whereas methane consists of carbon and hydrogen. Compounds are substances that contain atoms of at least two elements chemically combined. Hence, water and methane are compounds.

Smog is a compound or a mixture?

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

  1. Compound

  2. Mixture

  3. Element

  4. None of above

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Correct Option: B
Explanation:

Smog is a mixture of smoke and fog. There is no chemical combination and properties of smog are dependent on the properties of its constituent element.

What are the materials which contain at least two pure substances and show the properties of their constituents called?

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

  1. A compound

  2. An element

  3. A mixture

  4. A solution

Show answer
Correct Option: C
Explanation:

A mixture is composed of two or more pure substances and a mixture always shows the properties of their constituents.