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Atoms and Molecules

A colorful illustration of various atomic structures and molecules, showcasing hydrogen, nitrogen, and water, with a background of scientific equations.

Atoms and Molecules Quiz

Test your knowledge on the fundamental concepts of atoms and molecules with this engaging quiz! Discover how well you understand key principles such as the law of conservation of mass, Dalton's atomic theory, and chemical compounds.

Whether you're a student, teacher, or science enthusiast, this quiz will challenge you with questions like:

How much ammonia is formed from hydrogen and nitrogen?
What did Ayush observe after burning wood?
What is the mass of oxygen in water?

10 Questions2 MinutesCreated by CalculatingAtom49

When 3 g of hydrogen combines with 14 g of nitrogen it gives off 17 g of Ammonia, how much ammonia will be formed when 3 g of Hydrogen will combine with 28 g of nitrogen ?

34 g

17 g

20 g

40 g

Ayush wanted to verify the law of conservation of mass, he burnt a piece of wood weighing 250 g in air and then he measured the mass of ashes. What will he observe ?

Mass of ashes = 250 g

Mass of ashes > 250g

Mass of ashes < 250 g

Information insufficient

Aadi thought that Why only Ayush ! So he also performed one experiment to verify the law of definite proportion, he took two samles of water one from tap water and another one from R.O. He Found the ratio of oxygen and hydrogen within the molecules of hydrogen, what will he find

Both sampes are haiving H:O = 1:8

Tap water has H:O = 1:8

R. O. Water has H:O = 1:16

Can't say

According to Dalton

Atoms can be divided into electrons , protons and neutrons

Atoms are the smallest particles, can't divide any more

Atoms are small but can be divided

Atoms are spherical particles

Which of the Following postulates of Dalton was wrong

All matter is made up of very tiny particles called atoms

Atoms combine in the ratio of small whole numbers to form compounds

The relative number and kinds of atoms are constant in a given compound

Atoms of a given element are identical in mass and chemical properties

Symbol used for sodium is Na is because its

Natrium

Nitrogen

Nitrium

None

Which of the Ammonium Sulphate ?

(NH4)2SO4

(NH4)SO3

(NH3)SO3

(NH4)SO2

How many Oxygen atoms are there in 10 moles of sodium Sulphite

10 moles

20 moles

30 moles

16 moles

What is the mass of 0.2 moles of Oxygen gas ?

3.2 g

6.4 g

3.4 g

7.2 g

How much Oxygen are there in 0.5 g of water ?

8 g

16 g

32 g

64 g

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