EASY
9th Kerala Board
IMPORTANT
Earn 100

Which are the gases contained in the atmospheric air?

Important Questions on Non-Metals

EASY
9th Kerala Board
IMPORTANT
Which is the most abundant gas in the atmosphere?
EASY
9th Kerala Board
IMPORTANT
Take 5 ml of dilute hydrochloric acid in a test tube and add some zinc granules into it. Bring a burning matchstick at the mouth of the test tube. What do you observe?
EASY
9th Kerala Board
IMPORTANT
Take 5 ml of dilute hydrochloric acid in a test tube and add some zinc granules into it. Bring a burning matchstick at the mouth of the test tube. We can hear a pop sound. Which is this gas that burns with a pop sound?
EASY
9th Kerala Board
IMPORTANT

Zn+2HClZnCl2+H2

What are the reactants and products in this reaction?

EASY
9th Kerala Board
IMPORTANT
How is zinc chloride formed along with hydrogen gas in the reaction between hydrochloric acid and zinc granules?
EASY
9th Kerala Board
IMPORTANT

Question Image

Look at the graph which shows the amount of heat energy produced by burning 1 g of different fuels.

Which fuel has the highest calorific value among these?

EASY
9th Kerala Board
IMPORTANT
What will be the product formed when hydrogen burns in air?
MEDIUM
9th Kerala Board
IMPORTANT
What are the advantages of hydrogen as a fuel? List out.