What is meant by atomicity of a molecule?

Important Questions on Atoms and Molecules

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 22

What is the difference between an atom and a molecule?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 1

What was the postulate of Dalton's atomic theory about the divisibility of atom? How was this postulate modified?

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 2

What was the postulate of Dalton's atomic theory regarding the mass of an atom? How was this postulate modified?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 3

An atom contains particles such as a proton, neutron and electron. Is it possible to have some other particles inside an atom? What are these particles?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 4

The charge of an atom is zero because in an atom, the number of protons is equal to the number of electrons. Is it possible to have some other charged particles inside an atom and more neutral particles other than neutron inside an atom?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q A

The ratio of $\mathrm{H}:\mathrm{O}$ by mass in hydrogen peroxide$\left({\mathrm{H}}_2{\mathrm{O}}_2\right)$ is

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q A

The mass percentage of hydrogen $\left(\mathrm{H}\right)$ in water is 

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q A

The molecular formula of zinc phosphate is