Chemistry Quiz for Grade 9

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I carefully picked the most repeated but important Chemistry MCQs of Grade 9. 

In the future, I will add more Chemistry MCQs For Grade 9. If you could provide me with some valuable feedback on the selection of MCQs, I would appreciate it.

Chemistry Quiz for Grade 9 Instructions:

  • There will be 30 multiple choice questions in this Quiz.
  • Answers to the questions will change randomly each time you start this Quiz.
  • Practice this Quiz at least three times to secure High Marks.
  • You can see your scores and ratings at the end of the Quiz.
  • If you found any incorrect answers in the Quiz, click on the quiz title and comment on that MCQ so our team can update the incorrect answer on time.

  • Question of

    In all the three states of water, (i.e. ice, liquid and vapour) chemical composition of water

    • remains same
    • is very different
    • sometimes same and sometimes different
    • none of them
  • Question of

    Which of the following statements is incorrect about the state of matter?

    • Bose-Einstein condensate is formed by heating gas of extremely low density.
    • The plasma glows with a special colour depending on the nature of the gas.
    • Plasma consists of super energetic and super excited particles.
    • The force of attraction between the gas particles is very less.
  • Question of

    Which of the following is not a property of gas?

    • Gases have a definite shape
    • Gases have no definite volume
    • The rate of diffusion of a gas is higher
    • Gaseous particles are in a state of random motion
  • Question of

    When heat is constantly supplied by a burner to boiling water, then the temperature of the water during vaporisation:

    • Does not rise at all
    • First rises and then becomes constant
    • Rises rapidly until steam is produced
    • Rises very slowly
  • Question of

    The process in which solid is directly converted to vapors state is called ___________.

    • sublimation
    • solidification
    • vapourisation
    • condensation
  • Question of

    Which of the following phenomena would increase on rising temperature?

    • Evaporation, diffusion, expansion of gases
    • Evaporation, solubility, diffusion, compression of gases
    • Evaporation, compression of gases, solubility
    • Diffusion, evaporation, compression of gases
  • Question of

    Which of the following conditions is most favourable for converting gas into liquid?

    • High pressure, low temperature
    • Low pressure, low temperature
    • Low pressure, high temperature
    • High pressure, high temperature
  • Question of

    Which of the following properties does not describe a compound?

    • It is mixed in any proportion by mass
    • It cannot be separated into constituents by physical means
    • It is a pure substance.
    • It is composed of two or more elements
  • Question of

    In the tincture of iodine, find the solute and solvent?

    • iodine is the solute and alcohol is the solvent
    • alcohol is the solute and iodine is the solvent
    • any component can be considered as solute or solvent
    • tincture of iodine is not a solution
  • Question of

    Which of the following is not a homogeneous mixture?

    • milk
    • Air
    • Tincture of iodine
    • Sugar solution
  • Question of

    What is the statement? “10 percent glucose in water by mass” signifies.

    • 10 gram of glucose dissolved in 90 gram of water.
    • 10 gram of glucose dissolved in 100 gram of water.
    • 20 gram of glucose dissolved in 200 gram of water.
    • 20 gram of glucose dissolved in 90 gram of water.
  • Question of

    Sol and gel are examples of ____________.

    • Sol is a solid-liquid colloid and gel is liquid-solid colloid
    • Solid-solid colloids
    • Sol is solid- solid colloid and gel is solid-liquid colloid
    • Sol is a liquid-solid colloid and gel is a solid-liquid colloid
  • Question of

    An example of liquid metal and liquid non-metal is:

    • Mercury, bromine
    • Bromine, sulphur
    • Mercury, chlorine
    • Gallium, mercury
  • Question of

    Which of the statements is incorrect about the physical change?

    • It is permanent and Irreversible
    • There is no gain or loss of energy.
    • Composition of the substance remains the same
    • No new substance is formed.
  • Question of

    The atomic symbol of silver is ___________.

    • Ag
    • Au
    • S
    • Si
  • Question of

    What is the value of Avogadro’s number?

    • 6.02 x 1023
    • 6.02 x 10-23
    • 6.02 x 10-22
    • 6.02 x 1022
  • Question of

    What is the chemical formula of sodium carbonate?

    • Na2CO3
    • NaHCO3
    • NaCO3
    • Na2HCO3
  • Question of

    Which of the following is the correct pair of atom and its atomic symbol?

    • Phosphorus -P
    • Sulphur – Su
    • Potassium – P
    • Sodium- S
  • Question of

    How many moles are present in 40 g of He?

    • 10 moles
    • 6 moles
    • 20 moles
    • 5 moles
  • Question of

    Atomic mass of Chlorine is __________ (u)

    • 35.5
    • 34.5
    • 34
    • 35
  • Question of

    The formula of Ammonium Sulphate is _________.

    • (NH4)2SO4
    • NH4SO4
    • NH4SO2
    • NH2SO4
  • Question of

    The atomic symbol of Iron is _________.

    • Fe
    • I
    • Au
    • Ir
  • Question of

    Atomic number (Z) is equal to _________.

    • Number of protons in the nucleus of an atom.
    • Number of electrons in a neutral atom
    • Both of them
    • None of them
  • Question of

    Two atoms are said to be Isobars if ___________.

    • None of them
    • They have same atomic number but different mass number
    • They have same number of electrons but different number of neutrons
    • They have the same number of neutrons but different numbers of electrons.
  • Question of

    Mass of proton is ___________.

    • 1.0073 amu
    • 1.000 amu
    • 0.9073 amu
    • 5.486 x 10-4 amu
  • Question of

    The mass number of the element is ___________.

    • the sum of the number of protons and neutrons
    • the sum of the number of electrons and protons
    • the number of neutrons
    • the number of protons
  • Question of

    The atomic number of an element is equal to _________.

    • number of protons
    • number of neutrons
    • number of electrons
    • number of neutrons + number of protons
  • Question of

    An alpha particle is also known as __________.

    • a doubly-charged helium ion
    • a neutral particle
    • an unionised helium atom
    • subatomic particle
  • Question of

    Which of the following statements about the electron is incorrect?

    • The mass of the electron is equal to the mass of the neutron
    • It is a negatively charged particles
    • It is a basic constituent of all atom
    • It is a constituent of cathode rays
  • Question of

    How many electrons are occupied in the M shell?

    • 18
    • 8
    • 16
    • 32

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