Tag: pure substances and mixtures: separation of mixtures

Questions Related to pure substances and mixtures: separation of mixtures

Which one of the following is neither an element nor a compound?

chemistry pure substances and mixtures: separation of mixtures difference between mixtures and compounds pure substance and mixtures types of pure substances

  1. Air

  2. Glucose

  3. Gold

  4. Water

  5. Carbon

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Correct Option: A

Which of the following is not a property of compounds?

chemistry pure substances and mixtures: separation of mixtures difference between mixtures and compounds pure substance and mixtures types of pure substances

  1. Components are present in a fixed proportions

  2. They are always homogeneous

  3. The components in compounds do not retain their original properties

  4. The components in compounds can be separated by physical means

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Correct Option: D
Explanation:

The components of compounds can be separated by chemical means. Rest all are properties of compounds.

The components in compounds ______ their original properties.

chemistry pure substances and mixtures: separation of mixtures difference between mixtures and compounds pure substance and mixtures types of pure substances

  1. retain

  2. do not retain

  3. both A and B 

  4. none of the above

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Correct Option: B
Explanation:

The components in compounds do not retain their original properties.

The components in mixtures _______ their original properties. 

chemistry pure substances and mixtures: separation of mixtures difference between mixtures and compounds pure substance and mixtures types of pure substances

  1. retain

  2. do not retain

  3. both A and B

  4. none of the above

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Correct Option: A
Explanation:

The components in mixtures retain their original properties.


The constituents of a heterogeneous mixture are X, Y and Z. 
If mixture of X and Y taken separately then, X can be separated using magnetic separation from Y. If mixture Y and Z is taken then it can be separated using distillation method.

Which of the following mixture can be X, Y, Z?
chemistry pure substances and mixtures: separation of mixtures dry methods of separation process of separating components of a mixture method of separation

  1. Iron, salt, water.

  2. Sulphur, carbon disulphide, water.

  3. Gun powder, common salt, water.

  4. Iodine, sand, alcohol.

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Correct Option: A