9th Science - Important Questions.

Chapter 1 : Biodiversity And Classification : -

1.  Write Important features of - Kingdom Monera,  Kingdom Pratista and Kingdom fungi. 

2.  Difference between Amphibians and Reptiles. 

3.  Difference between Angiosperms and Gymnosperm.  

4.  What are the Basis of Five Kingdom of Classification. ?

5.  What are Nonchordata and Chordata. 

6.  Diagram of a Prokaryotic cell.  

Chapter 2 : Matter : Nature and Behavior : -

1.  Define Mixture , Saturated Solution and Colloids   ? 

2.  What is common Salt ?  Element,  Mixture or Compound ? Explain .

3.  What is Brownian Motion.  Explain Tyndall Effect. 

4.  200 g of washing soda is dissolved in 1Kg water to form a solution.  Calculate the concentration of this solution in percent.  

5. What is Suspension  ? Give Example. 

Chapter 3 : Atomic structure : -

1.  Discuss Bohr's atomic Model. 

2.  Explain Dalton's  Atomic theory and Limitations of Dalton's theory ?

3.  Write the electronic configuration of the following.  ( According to Bohr bury Scheme) 

   Na ,  C  ,  Cl  .

4.  What is Alpha Particle Scattering experiment of Rutherford  ? 

5.  How is atom Proposed by Thomson different from the atom of Dalton ?

6. What are isotopes and Isobars  ? 

Chapter 4 : Motion : -

1.  Write difference between speed and velocity ? 

2.  Defining uniform motion and non- uniform motion , give two - two examples of both. 

3.  What is acceleration  ? Write it's Unit. 

4.  A ball is thrown down from a building of height 20m.  If it's velocity Is increases with uniform acceleration of 10 m/s² . then with what speed and time,  it will strike the ground. 

5.  Derive second equation of motion. 

Chapter - 5 : Force and Laws of Motion : -

1.  Why does a Person moves Backward on shooting a gun  ?

2.  What do you Understand by Inertia ?

   Write the types of Inertia. 

3.  Write the Law of Conservation of Momentum. 

4.  Write Second law of motion and mathematical formula of second law of motion. Also write the meaning of Symbol Used. 

Chapter 6 : Fundamental Unite of life Cell :-

1.  Draw label diagram of animal cell / Plant cell .

2.  Name  of Scientist who Proposed Cell theory. 

3.  Draw a Labelled Diagram of prokaryotic cell. Write important features of Prokaryotic cell. 

4.  Write a Note on Mitochondria. 

5.   Difference between Prokaryotic and Eukaryotic cells  ? 

Chapter  - 7 : Multicellular Structure : Tissue :-

1.  What do you understand by Tissue  ? Write the function of any three Tissue. 

2.  Why blood is known as connective tissue. 

3.  Difference between Cartilage and Bone? 

4.  Write the function and structure of Xylem and Phloem

Chapter : 8 : Chemical Bonding :-

1.  Atomic Number of Chlorine is 17  and atomic number of Sulphur is 16.  Write their electronic configuration.    Explain formation of chlorine molecule using dot structure. 

2.  Write down difference between Ionic and Covalent compound. 

3.  What is Redox reaction  ?  Give two examples of Redox Reaction. 

4.  What is the role of Valence electrons in the formation of chemical compound  ? Explain 

5.  Give the number of Covalent bond in one molecule of ammonia. 

6.  Show the formation of Magnesium Chloride with help of electronic configuration model. 

Chapter : 09 : Chemical Formula And Mole Concept :-

1.  Calculate Molecular Weight of the Following.  a)  HCl  b)  NH³

2.    a)   Define 1mole and what is it's value.   b)   What  is unit mass formula. 

3.  Using the criss cross method,  Write down formula of the following :

   I)  Iron Sulphate  2)  Copper Nitrate 

   3)  Sodium Sulphide  4)  Magnesium Bicarbonate   5)  Magnesium Sulphate   6) Ammonium Sulphate. 

4.  Atomic weight of Oxygen is 16u. What will be molecule weight of H²O² .

5.  How do we get acid and basic Radicals. 

Chapter - 10 : Chemical Reaction and Equation :-

1.  Balance the following Chemical equation. 

2.  Balance the given chemical equations :

    

3.  What is chemical equation  ? Why should chemical equations be balanced ?

4.  Why  does the colour of copper sulphate solution change when an iron nail is dipped in it  ?

5.  What is you understand by precipitation reactions ? Give example. 

Chapter -11 : Gravitation :-

1.  What  is the importance of Universal law of Gravitation. 

2.  Derive an equation to find the acceleration produced due to earth on an object of mass 'm' . Also find its Value. 

3.  The Gravitation between two bodies is F.  In What situation will the force between the two become 4F.

4.   A ball through upward vertically comes back to thrower in 6sec. Tell.   a)  What was the velocity of ball throw.    b)  What was maximum height reached by the ball. 

c)  Position of ball after 4 sec. 

Chapter - 12 : Work and Energy :-

1.  What do you understand by kinetic energy  ?  Establish the equation for the kinetic energy for an object in motion. 

2.  What is law of conservation of energy?  Explain in details. 

3.  Define 1 watt power  ?

4.   On applying a force of 8 Newton on the body,  it moves in the direction of motion and displaces for 4m.  Calculate the work done.  

Chapter 13 : Our Health :-

1.  What is immunity and Vaccinations  ?  How does immunity effect our health.  Give Examples. 

2.  What is the difference between infectious disease and non infectious disease ? Give an example of each. 

3.   Justify statement : " Prevention is better than Cure "

Chapter - 15 : Hydrocarbons :-

1.  Draw structure of following  :  2 - Methyl butane,   Prop - 1 - yne  ,   Pent - 2 - ene  ,  But - 1- yne. 

2.  What is a Homologous Series  ?  Explain through examples. 

3.   Difference between Position and Chain isomerism. 

Chapter - 16 : Coal Petroleum and Petrochemical : -

1.   What are fossil fuels  ? Give Example. 

2.   What is combustion  ? Explain  .

3.  Describe different type of Coal in details. 

Chapter 18 : Waste and it's Management :-

1.  Write a Note on the process of decomposition. 

2.  Define  Recycling of waste and Write about it's Advantages. 

3.  What are the different types of Pollution waste.  Briefly describe how to manage waste to protect environment.