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100

Metals are good conductors of electricity-True/False

True

100

Non-Metals are good conductor of heat

False

100

Name any 3 metals

Iron, Copper, Aluminium, Sodium, Gold

100

Name any 3 non-metals

Carbon, Oxygen, Phosphorous, Sulphur

200

The property of metals due to which they can be converted into thin sheets

Malleability

200

The property of metals due to which they shine

Lustrous

200

The property of metal due to which they produce sound

Sonorous

200

The property of metals due to which they can be converted into wires

Ductile

300

What is produced when metals react with Oxygen

Metal Oxide

300

What is Produces when Metals react with Water

Metal Oxide+Hydrogen

300

Is Graphite a metal or non-metal

Non-Metal

300

Name a non-metal which is good conductor of electricity

Graphite

400

Iron+Oxygen=

Iron Oxide

400

Magnesium + Oxygen=

Magnesium Oxide

400

Which Metal does not react with Water

Gold

400

Which metal is used to make wires

Copper

500

Which metal is stored in kerosene and why?

Sodium because it is highly reactive with water and oxygen

500
What is the nature of Metals and give 1 evidence/proof for the same

Basic in Nature as it turns red litmus paper blue/turmeric indicator red.

500

How can we prevent iron doors and windows from catching rust and why?

Iron catches rust when reacts with Oxygen and Water. Painting it will can protect it from Oxygen and Water. Hence, protecting iron from catching rust

500

Why do we have switches made of plastic

Plastic is made from non-metal which is a bad conductor of electricity. Hence plastic switches prevent us from catching current.