EASY
8th CBSE
IMPORTANT
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Three pins made of copper, aluminium and iron are kept in moist air for several days. Of these, which pin will corrode?

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Important Questions on Metals and Non-Metals

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q A
An iron pipe coated with ______ is called a galvanised pipe.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q A
Which non-metal is neither a gas nor a solid at room temperature?
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q A
Microchips are made with semiconductors made of ______
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q A
Which non-metal is used in fluorescent lights in advertisement displays
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q B
Non-metals are generally _____ (poor/good) conductors of heat and electricity.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q C
The majority of elements are non-metals.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q C
Sodium and potassium are metals that can be drawn into wires.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q C
Less reactive metals displace hydrogen from dilute acids, resulting in the liberation of hydrogen gas.