Tag: pure substances and mixtures: separation of mixtures

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Questions Related to pure substances and mixtures: separation of mixtures

Multiple choice chemistry pure substances and mixtures: separation of mixtures mixtures: examples and properties types of solutions all about mixtures

Steel is a type of :

  1. Solid-liquid heterogeneous mixture

  2. Solid-solid heterogeneous mixture

  3. Solid-solid homogeneous mixture

  4. Pure substance
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Centrifugation is a technique which involves the application of centrifugal force to separated particles from a solution.Generally this is used in wasting machines to separated water particles from cloths during dry washing.

Multiple choice chemistry pure substances and mixtures: separation of mixtures mixtures: examples and properties types of solutions all about mixtures

Mixture perfectly uniform in its composition and properties throughout its bulk is called :

  1. homogeneous mixture

  2. heterogeneous mixture

  3. both A and B

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mixture perfectly uniform in its composition and properties throughout its bulk is called homogeneous mixture, e.g., solution of alcohol in water, dust free air etc.

Multiple choice chemistry pure substances and mixtures: separation of mixtures mixtures: examples and properties types of solutions all about mixtures

Among the following, bronze is a/an example of :

  1. an element

  2. a mixture

  3. a compounds

  4. all of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bronze is a alloy, it is composed of the mixture of copper and tin. It was made before 3000 bc, though its use in artifacts did not become common until much later. The proportions of copper and tin varied widely (from 67 to 95 percent copper in surviving artifacts).

Multiple choice chemistry pure substances and mixtures: separation of mixtures mixtures: examples and properties types of solutions all about mixtures

Mixture with different compositions and different properties at different locations in the mixture is called a :

  1. homogeneous mixture

  2. heterogeneous mixture

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Heterogeneous mixture is a mixture that consists of physically different parts each with different properties.