MEDIUM
10th ICSE
IMPORTANT
Earn 100

Define an alloy. How are alloys prepared. How do the properties of iron change when a small quantity of carbon is mixed with it?

Important Questions on Metals and Non-metals

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 7
Define an alloy. How are alloys prepared. How do the properties of iron change when nickel and chromium are mixed with it?
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 8
Describe an activity to develop a reactivity series.
EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 8
Write two physical and two chemical properties of nonmetals.
EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 9

Hydrogen gas is evolved by reacting a piece of magnesium ribbon with water.

Describe how you could show that the gas evolved is hydrogen.

EASY
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 9

Hydrogen gas is evolved by reacting a piece of magnesium ribbon with water.

Write a symbol equation for the reaction taking place between magnesium and water.

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 9

Hydrogen gas is evolved by reacting a piece of magnesium ribbon with water.

Suggest how the appearance of magnesium would change after a week.

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 9

Hydrogen gas is evolved by reacting a piece of magnesium ribbon with water.

A few drops of universal indicator solution are added to water in the beaker. What colour would you expect to see and what pH this colour would indicate?

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 3 - Metals and Non-metals>ASSESSMENT>Q 10
Name the alloy used for welding electric wires together. What are its constituents?