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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