9th Class Chemistry MCQs with Answers for All Board Exams

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9th Class Chemistry MCQs with Answers

You can easily practice these MCQs for the Chemistry test, and class 9th board examination. You can also download these MCQs in PDF

Below are chapter-wise MCQs of Chemistry for Class 9th students. You can easily explore each chapter and practice these MCQs for your board exam.

Solved MCQs of Chemistry 9th Class

Table of Contents:

Chapter 1: Chemistry Class 9th

Fundamentals of Chemistry MCQs with Answers

Unit 1: 9th Class Chemistry MCQs with Answers solved MCQs of Fundamental of Chemistry.

1: Which of the following group comprises elements:

  • a. Mercury, Water, Ammonia
  • b. Iodine, Tin, Iron
  • c. Copper, Aluminum, Methane 
  • d. Coal, Smoke, Fog                  

b. Iodine, Tin, Iron

2: Which one of the following can be broken down into simpler substances?

  • a. Ammonia   
  • b. Oxygen
  • c. Sulphur             
  • d. Iron Filling             

a. Ammonia

3: The gram molecular mass of HNO3 is:

  • a. 60 
  • b. 100                            
  • c. 63                    
  • d. 98

c. 63

4. Which one of these is not a compound?

  • a. N2O                        
  • b. N                            
  • c. NO                   
  • d. NO2

b. N2

5. Which of the following equals two moles of water?

  • a. 1.08×1025                       
  • b. 6.022× 1023             
  • c. 1.204×1024      
  • d. 1.806×1024

c. 1.204×1024

6. A compound contains:

  • a. Different kinds of atoms mixed together
  • b. Same kinds of atoms mixed together
  • c. Different kinds of atoms chemically combined together
  • d. The same kinds of atoms chemically combined together

c. Different kinds . .

7. Which one of the following is an example of triatomic molecules?

  • a. CO2                        
  • b. O                           
  • c. CH4                        
  • d. NH3

a. CO2

8. Hydrogen gas is:

  • a. monoatomic gas     
  • b. a mixture of hydrogen atoms         
  • c. diatomic gas  
  • d. a diatomic atom

c. diatomic gas

9. Which one of the following has both empirical and molecular formula identical?

  • a. Benzene C6H6   
  • b. Hydrogen Peroxide H2O2       
  • c. Water H2O       
  • d. Glucose C6H12O6

c. Water H2O

10. Which one of the following is a homogenous mixture:

  • a. smoke      
  • b. air               
  • c. fog                   
  • d. smog

b. air

11. The main purpose of the Muslim period is to convert to Gold.

  • a. mercury                  
  • b. lead                    
  • c. iron               
  • d. carbon

b. lead

12. The father of chemistry is called ………………….?

  • a. Jabber Bin Hayan     
  • b. Al Razi           
  • c. Al Beruni          
  • d. none of these

a. Jabber Bin Hayan

13. The Book Al-Asrar was written by ……………..?

  • a. Jabber Bin Hayan     
  • b. Al Razi           
  • c. Al Beruni          
  • d. none of these

b. Al Razi

14. Who rejected the idea of converting base metal into gold?

  • a. Ibne-seena     
  • b. Al- Razi           
  • c. Jabber bin Hayan     
  • d. None of these             

a. Ibne-Seena

15. The only soft metal in nature that can be cut with a knife is:

  • a. Iron                    
  • b. Copper        
  • c. Gold    
  • d. Gallium

d. Gallium

16. The mass number is also called……………..?

  • a. nucleon number    
  • b. proton number    
  • c. atomic number
  • d. all of these

a. Nucleon number

Chapter 2: Chemistry Class 9th


Unit 2: 9th Class Chemistry MCQs with Answers Solved MCQs of Structure of Atom.

1. The maximum number of electrons in the third energy level is:

  • a. 10      
  • b. 18             
  • c. 32               
  • d. 64             

b. 18

2. The mass of an atom is mostly due to its:

  • a. nucleus           
  • b. neutrons              
  • c. electron       
  • d. protons

d. protons

3. If Rutherford had used a neutron instead of an alpha particle in his experiment, the neutron would have:

  • a. not deflected because they have no charge
  • b. have deflected more often
  • c. have been attracted to the nucleus easily
  • d. have given the same result.

a. not deflected…

4. Electron in its ground states does not………

  • a. spin                
  • b. revolve                
  • c. radioactivity          
  • d. reside in orbit

c. radioactivity

5. Which statement about 6X12 and 6Y14 is false?

  • a. they are isotopes
  • b. they have the same elements
  • c. they have the same number of electron
  • d. they have the same number of neutrons

a. they are isoptopes

6. The neutron particle……

  • a. has a mass equal to that of an electron
  • b. has mass approximately equal to that of a proton
  • c. has a charge equal to but opposite to that of an electron
  • d. has a positive charge

b. has mass …

7. Isotopes of the same element have………

  • a. same no of proton     
  • b. same no of neutron   
  • c. different no electron    
  • d. same mass no

a. same no of proton

8. Which one is the lightest…….?

  • a. alpha particle             
  • b. hydrogen atom           
  • c. an electron                   
  • d. a proton

a. alpha particle

9. The nucleus of an atom has all of the following characteristics except that it……

  • a. is positively charged    
  • b. is very dense    
  • c. contain nearly all the mass of an atom  
  • d. contain nearly all the atom Volume

d. contain nearly….

10. L- shell has sub-shell…….

  • a. s                                     
  • b. s and p               
  • c. s, p and d                 
  • d. s, p, d and f

b. s and p

11. Atom is the Greek word atomos which means……….. Particle.

  • a. divisible                        
  • b. electron              
  • c. indivisible                
  • d. None

c. indivisible

12. “A new system of chemical philosophy” is a theory given by…….

  • a. Dalton                           
  • b. Rutherford         
  • c. Newton                     
  • d. None

a. Dalton

13. Fundamental particles are called…………

  • a. electron                         
  • b. proton                 
  • c. neutron                    
  • d. all of these

d. all of these

14. Electron have …… charge and ……. Mass…….

  • a. 9.1×10-31 and 1.6×10-19
  • b. 1.6×10-19  and 9.1×10-31
  • c. both of these 
  • d. None of these 

b. 1.6×10-19  and 9.1×10-31

15. There are …….. Shells in the atom.

  • a. Seven                            
  • b. five                      
  • c. two                            
  • d. none

a. Seven

16. S, P, D and F are called ……… of the atom.

  • a. shell                               
  • b. subshell             
  • c. particle           
  • d. none of these             

b. subshell

Chapter 3: Class 9th Chemistry


Unit 3: 9th Class Chemistry MCQs with Answers Solved MCQs of Periodic Table and Periodicity of Properties.

1. Which of the following element has the same family as fluorine:

  • a. Silicon  
  • b. Antimony     
  • c. Iodine   
  • d. Arsenic                             

c. Iodine

2. Which of the following would have the smallest ionization energy:

  • a. K                    
  • b. P                              
  • c. S                                 
  • d. Ca

b. K

3. An element has a configuration of 2, 8 and 1. It belongs to:

  • a. Group I and III periods                    
  • b. Group III and I period
  • c. Group I and VII period             
  • d.Group VII and III period

a. Group I and III Periods

4. Which of the following element would be the most similar to carbon:

  • a. Nitrogen        
  • b. Boron                       
  • c.Oxygen                       
  • d. Silicon 

d. Silicon

5. S- block elements are:

  • a. metals        
  • b. non-metals              
  • c. metalloids                 
  • d. transition

d. transition

6. Which of the following would have the largest ionization energy:

  • a. Na                 
  • b. Al                             
  • c. H
  • d. He              

d. He

7. Elements in ……….. have similar chemical properties:

  • a. periods         
  • b. group                       
  • c. both a and b
  • d. neither a nor b

b. group

8. An element has 8 electrons in the valance shell. It is a member of:

  • a. Alkali metal     
  • b. Halogen family     
  • c. Noble family 
  • d. Carbon family

c. Noble family

9. The modern periodic table is based on:

  • a. Atomic number    
  • b. Mass number   
  • c. Neutron number 
  • d. Isotopes number

a. Atomic number

10. Shielding effect is due to:

  • a. Neutron     
  • b. Proton         
  • c. Proton and Neutron       
  • d. Electron

d. Electron

11. Law of triads is given by:

  • a. Moseley                
  • b. Doberiner         
  • c. Both                           
  • d. None

b. Doberiner

12. Newland classifies elements on the basis of:

  • a. Atomic number     
  • b. Mass number    
  • c. Isotopes number 
  • d. None of above

b. Mass number

13. Law of octaves is given by:

  • a. Moseley                 
  • b. Mendeleev’s        
  • c. Newland                   
  • d. All of above 

c. Newland

14. Moseley classify element on the basis of:

  • a. Atomic number     
  • b. Atomic mass   
  • c. Isotopes       
  • d. None

a. Atomic number

15. Modern periodic law is given by:

  • a. Moseley                 
  • b. Mendeleev’s           
  • c. Newland
  • d. None of above         

a. Moseley

16. Vertical Colum of the periodic table is called:

  • a. Period 
  • b. Groups    
  • c. Both            
  • d. Family                           

b. Groups

17. The horizontal row of the periodic table is called:

  • a. Group  
  • b. Periods     
  • c.  Family     
  • d. All                                

b. Family

18. The highest electronegative element of the periodic table is called:

  • a. Fluorine       
  • b. Chlorine                    
  • c. Bromine       
  • d.Iodine

a. Flurine

19. The least electronegative element of the periodic table:

  • a. Hydrogen                  
  • b. Cesium                     
  • c. Beryllium     
  • d.Carbon

b. Caesium

Chapter 4: Class 9th Chemistry


Unit 4: 9th Class Chemistry MCQs with Answers Solved MCQs of Structure of Molecules.

1. An atom with charge is called:

  • a. an electron                         
  • b.  a molecules       
  • c. a metal                  
  • d. an ion

d. an ion

2. An element X is in group VI of the periodic table. The ion will be represented by:

  • a. X+ 
  • b. X                                
  • c. X-2                          
  • d. X+2                                     

c. X-2

3. Which pair of elements will join to form a compound with one to one ratio?

  • a. Magnesium and Chlorine  
  • b. Sodium and Oxygen   
  • c. Potassium and Fluorine
  • d. Lithium and Sulphur

c. Potassium and Flurine

4. When calcium atom become calcium ion Ca+2:

  • a. it loses an electron
  • b. it loses two electrons
  • c. it gains electrons
  • d. gain two electron

b. it loses two electrons

5. Which two elements will form a covalent compound:

  • a. Sodium and Oxygen       
  • b. Copper and Oxygen      
  • c. Carbon and Oxygen  
  • d. Magnesium and Oxygen

c. Carbon and Oxygen

6. In the formation of an ionic bond the atom takes part:

  • a. only gain an electron
  • b. share electron 
  • c. lose and gain an electron  
  • d. only lose an electron

c. loses and gain …

7. Fluorine has an electronic configuration of 2, 7 and oxygen 2, 6. The formula of fluorine oxide will be:

  • a. FO                             
  • b. F2O                           
  • c. FO2                                 
  • d. F2O2

b. F2O

8. Which of these statement about covalent bonds is incorrect:

  • a. HCl contains one pair of shared electrons
  • b. CCl4 contains four pairs of shared electrons
  • c. H2O contains three pairs of shared electrons
  • d. NH3 contains three pairs of shared electrons

c. H2 O ..

9. Which of the following ions do not have the electronic configuration of an argon atom?

  • a. Ca +2                         
  • b. S-2                              
  • c. K+                                 
  • d. O-2

d. O-2

10. Which of the group below contain highly ionic compounds?

  • a. Calcium oxide, hydrogen chloride, magnesium oxide
  • b. calcium oxide, magnesium oxide, sodium chloride
  • c. carbon dioxide, copper sulphate, hydrogen chloride
  • d. copper sulphate, methane, sodium chloride

b. Calcium ….

11. The force which holds the atom together is called:

  • a. bond                
  • b. molecules                      
  • c. compound            
  • d. none    

a. bond

12. The bond formed by the complete transfer of electrons between the atom is called…….. bond:

  • a. covalent             
  • b. ionic                               
  • c. hydrogen              
  • d. dative

b. ionic

13. The bond formed by the mutual sharing of electrons is called:

  • a. covalent           
  • b. ionic                               
  • c. hydrogen                
  • d. dative

a. covalent

14. Nitrogen molecules and ethyne molecules contains:

  • a. double               
  •  b. single             
  • c. triple                       
  • d. none

c. triple

15. Chlorine and methane contain:

  • a. single                
  • b. double                            
  • c. triple                       
  • d. none

a. single

16. Oxygen, carbon dioxide and ethene contain:

  • a. single                
  • b. double                            
  • c. triple                       
  • d. none

b. double

17. Ammonium ions contain:

  • a. coordinate covalent bond       
  • b. covalent bond          
  • c. ionic bond          
  • d. none

a. coordinate covalent bond

18. The shape of water and carbon dioxide is:

  • a. linear and angular           
  • b. angular and linear        
  • c. linear and linear        
  • d. none

b. angular and linear

19. The shape of BF3 and NH3 is:
  • a. trigonal planner and trigonal pyramidal
  • b. trigonal pyramidal and trigonal planner
  • c. both
  • d. none

a. trigonal….

20. The shape of CH4 is:

  • a. tetrahedral                            
  • b. linear                   
  • c. trigonal                     
  • d. none

a. tetrahedral

Chapter 5: Class 9th Chemistry


Unit 5: 9th Class Chemistry MCQs with Answers Solved MCQs of Physical States of Matter.

1. The spontaneous mixing of particles is called:

  • a. evaporation     
  • b. sublimation                 
  • c. diffusion                    
  • d.boiling

c. diffusion

2. Which statement for the particle of solid is not correct?

  • a. they move at great speed
  • b. they are arranged in a regular pattern
  • c. there is very little space between the particles
  • d. the force of attraction between the particle is very strong

a. they …

3. A liquid boil when its vapours pressure becomes equal to:

  • a. 760 cm of Hg          
  • b. 1 pascal                       
  • c. 101.325 kilo pascal   
  • d. 0.1 atm

c. 101.325 kilo pascal

4. The vapour pressure of liquid increases with the:

  • a. increase in pressure
  • b. increase of temperature
  • c. increase of intermolecular forces
  • d. increase of polarity of molecules

b. increase of temprature

5.  Water normally boils at 100 0C but it is possible to boil at 50 0C which variable would you have to change to do this:

  • a. increase external pressure
  • b. decrease external pressure
  • c. increase surface area
  • d. decrease surface area

b. decreae external pressure

6. The vapour pressure of the liquid in a closed container depends upon:

  • a. amount of liquid           
  • b. the surface area of liquid   
  • c. temperature            
  • d. Both b and c

d. Both b and c

7. Which one of the following is not an example of an amorphous solid?

  • a. rubber                           
  • b. glass                             
  • c. glucose                    
  • d. plastic

c. glucose

8. At the freezing point which one of the following coexists in dynamic equilibrium:

  • a. gas and solid        
  • b. liquid and gas    
  • c. liquid and solid       
  • d. all of these

c. all of these

9. Ink spread in water because of:

  • a. vapour pressure              
  • b. expansion       
  • c. diffusion           
  • d. compressibility of water

c. diffusion

10. what will be the pressure of a gas, if the volume of the gas at 2 atm pressure is increased from 1.5 dm3 to 3 dm3:

  • a. 1 atm                      
  • b. 1.5 atm             
  • c. 2 atm            
  • d. 2.5 atm

a. 1tm

11. Diamond is …….. Conductor of electricity:

  • a. good                        
  • b. bad                   
  • c. both             
  • d. none

b. bad

12. Bucky ball consists of …… carbon atom:

  • a. 20           
  • b. 100                   
  • c. both              
  • d. 300

c. both

13. ……….. are used as semiconductors, superconductors and lubricants:

  • a. diamond                 
  • b. Buckyball        
  • c. graphite        
  • d. none


c. graphite

14. The atmospheric pressure is measured by a device called:

  • a. barometer              
  • b. manometer         
  • c. nanometer             
  • d. none

a. barometer

15. The atmospheric pressure is:

  • a. 760 mmHg                    
  • b. 760 torr                  
  • c. 101 K pascal             
  • d. all

d. all

16. Barometer was discovered by:

  • a. Dalton                       
  • b. Rutherford                  
  • c. Newton      
  • d. Torricelli

d. Torricelli


I hope all these 9th Class Chemistry MCQs with Answers will be helpful for your Board Examination preparation. If you need more solved Multiple Choice Questions with answers of class 9th and class 10th, you can find them below.

Class 9th and Class 10th Exam Solved MCQs


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