Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 1

EASY

11th Odisha Board

IMPORTANT

Earn 100

How many atoms of hydrogen are present in two moles of $H_{3} {PO}_{4}$ ?

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 2

How many atoms of oxygen are present in one gram of oxygen?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 3

How many calcium atoms are present in

10 g

of

{CaCO}_{3}

?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 2 - Basic Concepts Atoms & Molecules>QUESTIONS>Q 4

How many moles of hydrogen molecules are present in one mole of hydrogen peroxide?

(Write the final answer without units)

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 $H_{2} O$ ?

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?