EASY
11th Odisha Board
IMPORTANT
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How many moles of hydrogen molecules are present in one mole of hydrogen peroxide?

(Write the final answer without units)

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Important Questions on Basic Concepts Atoms & Molecules

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 4

How many molecules of oxygen are present in one mole of sulphuric acid?

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 5

How many molecules are there in 90 gms of H2O?

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 6
How many atoms are present in 49 gms of sulphuric acid?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 7

What is mass of half mole of nitrogen atom? (Only write the value without unit)

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 8

Avogadro's number of helium atoms weigh how many grams?

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 9
How many moles do 3 g of water represent?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 10
How many moles do 2 x 1022 molecules of hydrogen represent ?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 11
 A piece of copper weighs 0.635 g. How many atoms of copper does it contain?