TRUE / FALSE

Questions

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7 questions · timed · auto-graded

Question 11 Mark

Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is the same.

Answer

False

Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is not the same.

Question 21 Mark

The constituents of a mixture can only be separated by chemical means.

Answer

False.
The constituents of a mixture can be separated by chemical means and physical means.

Question 31 Mark

A heterogeneous mixture has a uniform composition throughout the mixture.

Answer

False.
A heterogeneous mixture has a non-uniform composition through the mixture.

Question 41 Mark

Milk is an emulsion.

Answer

True

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Question 51 Mark

All pure substances have characteristic melting and boiling points.

Answer

True

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Question 61 Mark

During centrifugation, solid particles of the mixture move towards the bottom.

Answer

True

Question 71 Mark

A separating funnel can be used for separating a mixture of immiscible liquids.

Answer

True

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TRUE / FALSE - CHEMISTRY STD 7 Questions - Vidyadip

CHEMISTRY TRUE / FALSE