Explain why alloy is a uniform mixture.

Important Questions on Metals and Nonmetals

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 27

Show by means of chemical equations how roasting can convert a sulphide ore into oxide.

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 28

Name the process that is used to concentrate sulphide ore. Describe briefly two stages that are involved in the conversion of concentrated sulphide ore into the corresponding metal.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 29

What is an alloy? Write the composition of an alloy called bronze. Give two uses of bronze

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 30

Write the chemical formula of cryolite. What is the purpose of adding it in the Hall’s process of extraction of aluminium?

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 31

Why is sulphur used in the vulcanisation of rubber?

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 1

Describe two methods for the concentration of ores.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 2

Explain the following term: Metallurgy

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 5 - Metals and Nonmetals>EXERCISES>Q 2

Explain the following term: Flux