Atoms and Molecules Class 9 MCQ Online Test. We covered all the Atoms and Molecules Class 9 MCQ Online Test in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
We also covered some other topics of physical science and chemistry like is matter around us pure, gravitation MCQ on our website for free. You will get all their respective links in the related posts section provided below.
Related Posts:
- Atoms and Molecules MCQ with Answers
- 20 MCQ on is Matter Around Us Pure
- Class 9 Gravitation MCQ Online Test
MCQ on Atoms and Molecules for Students
The number of atoms constituting a molecule is known as its
1) Valency
2) Combining power
3) Atomicity
4) none
Option 3 – Atomicity
Which of the following is mono atomic
1) Hydrogen
2) Ozone
3) Nitrogen
4) Helium
Option 4 – Helium
The symbol for the element chromium is
1) Cr
2) Cl
3) C
4) Ca
Option 1 – Cr
Greek name for sun is
1) Hydro
2) Oxy
3) Helio
4) Helios
Option 3 – Helio
Which of the following does not change when a chemical reaction takes place
1) Volume
2) Mass
3) physical properties
4) chemical properties
Option 2 – Mass
Molecules of the following element are made up of only one atom of that element
1) Iron
2) Sodium
3) Helium
4) Chlorine
Option 3 – Helium
Argon is
1) monoatomic
2) diatomic
3) triatomic
4) polyatomic
Option 1 – monoatomic
Which of the following is not the postulate of Dalton’s atomic theory of matter
1) Each element is made up of extremely small particles called atoms
2) Atoms of a given element are identical in chemical properties but may have be different physical properties
3) Atoms cannot be created or destroyed
4) Compounds are formed by the chemical union of atoms of two or more elements in a fixed proportion which are simple whole number
Option 2 – Atoms of a given element are identical in chemical properties but may have be different physical properties
Matter consists of indivisible particles called
1) Molecules
2) Compounds
3) Elements
4) Atoms
Option 4 – Atoms
When the particles of a substance contain only one type of atoms, the substance is called
1) Element
2) Compound
3) Molecule
4) None
Option 1 – Element
Choose the odd molecule
1) Argon molecule
2) Chlorine molecule
3) Oxygen molecule
4) Fluorine molecule
Option 1 – Argon molecule
We covered all the atoms and molecules class 9 MCQ online test above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
