TRUE / FALSE

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10 questions · timed · auto-graded

Question 11 Mark

Sand is an oxide of silicon.

Answer

True

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Question 21 Mark

Antimony is a metal.

Answer

False

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Question 31 Mark

Sodium can be cut with a knife.

Answer

True

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Question 41 Mark

Iodine acts as an antiseptic in the form of a tincture of iodine.

Answer

True

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Question 51 Mark

Silver is used to make electric cables.

Answer

False

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Question 61 Mark

Non-metals are poor conductors of electricity.

Answer

True. Except for graphite.

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Question 71 Mark

Magnesium is used in making light weight alloys of aluminium.

Answer

True.

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Question 81 Mark

Graphite is used in making filaments of electric bulb.

Answer

False.
Tungsten is used in making filaments of electric bulb.

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Question 91 Mark

Brass is an alloy of copper and zinc and has lustrous yellow colour.

Answer

True.

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Question 101 Mark

Stainless steel is used for making power transmission wires.

Answer

False.
Copper is used for making power transmission wires.

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TRUE / FALSE - CHEMISTRY STD 7 Questions - Vidyadip

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