EASY
8th CBSE
IMPORTANT
Earn 100

Microchips are made with semiconductors made of ______

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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
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.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q C
When iron nails are dipped in a solution of copper sulphate, they get coated with copper, because copper is more reactive than iron.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q C
Copper does not corrode on exposure to air.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q C
Mercury is the only non-metal which is liquid at room temperature.