MEDIUM
10th CBSE
IMPORTANT
Earn 100

Why can we use gold and platinum in jewellery?

Important Questions on Metals and Non-Metals

MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 6
Give chemical names of the two salts belonging to sodium family.
EASY
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 7
Name any one alloy made from (i) a metal and a non-metal (ii) two metals.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 8
Why do we apply paint on iron grills?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 9
Write the balanced chemical equation for the chemical reaction between manganese dioxide and aluminium powder. What happens if manganese powder is heated with aluminium oxide?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 10
Why do ionic compounds conduct electricity only in the molten state and not in the solid state ?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 11
In one of the methods of rust prevention, iron is not coated with anything. Name the method and define it.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 12
The wires carrying current in homes have a coating of PVC. Why?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 3 - Metals and Non-Metals>Test Your Knowledge>Q 13
Aluminium oxide and zinc oxide react with both acids and bases to produce salt and water. What are these oxides called? Write chemical equation in each case.