MEDIUM
Earn 100

What happens when dil.hydrochloric acid is added to iron filings? Choose the correct answer.
(a)Hydrogen gas and iron chloride are produced
(b)Chlorine gas and iron hydroxide are produced
(c)No reaction takes place
(d)Iron salt and water are produced

50% studentsanswered this correctly
Important Questions on Material : Metals and Non-Metals
HARD

EASY

MEDIUM

MEDIUM
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

EASY

EASY

MEDIUM
Why are metals used for making cooking vessels?

MEDIUM

MEDIUM
Write a chemical equation for the reaction taking place in the test tube. How does the colour of the solution change? What is the change in colour of iron nails?

EASY

EASY

HARD

MEDIUM

MEDIUM

EASY

MEDIUM

EASY
What is your observation in the following case:
Burning of magnesium in air.

HARD

MEDIUM

EASY

