9th Class Chemistry MCQs

Very Important 9th Class Chemistry MCQs written by Honorable Professor Mr. Adnan Haider Suib. These notes are very helpful in the preparation of 9th Class Chemistry MCQs for the students of the intermediate and these are according to the paper patterns of all Punjab boards.

• Here are the detailed 9th chemistry mcqs to help you prepare for your exams.
• Important Multiple Choice Questions 9th Chemistry full book mcqs pdf of every chapter of Chemistry  Class 9th.
• Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink. 
• How many times are the liquids denser than gases?  (A) 100  (B) 1000  (C) 10000  (D) 100000
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• The example of colloid is: (A) Jelly  (B) Chalk in water  (C) Paints  (D) Milk of magnesia
• Molarity is the number of moles of solute dissolved in: (A) 1 Kg of solution  (B) 100g of solvent  (C) 1 dm^3 of solvent  (D) 1dm^3 of solution
• Spontaneous chemical reactions take place in:  (A) Electrolytic  (B) Galvanic cell  (C) Nelson cell  (D) Downs cell
• The formula of rust is:  (A) Fe2O3.nH2O  (B) Fe2o3  (C) Fe(OH) 3.nH2O  (D) Fe(OH)3
• Which non-metal is lustrous?  (A) Sulphur  (B) Phosphorus  (C) Iodine  (D)  Carbon
• How many number of moles are equivalent to 8 grams of CO2?  (A) 0.15  (B) 0.18  (C) 0.21  (D)  0.24
• Which results in the discovery of proton?  (A) Cathode rays (B) Canal rays  (C) X-rays  (D) Alpha rays
• The amount of energy given out when an electron is added to an atom is called.  (A) Lattice energy  (B) Ionization energy  (C) Electronegativity  (D) Electron affinity
• How many blocks are there in modern periodic table of elements?  (A) 2  (B) 4  (C) 6  (D) 8
• Transfer of electron between atoms results in:  (A) Metallic bonding  (B) Ionic bonding  (C) Covalent bonding  (D) Coordinate covalent bonding
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• Which pair has polar covalent bond?  (A) O2 and C2  (B) H2O and N2  (C)  H2O and C2N2  (D) H2O and  HC
• Write short answers of any FIVE questions.
• (i) Define di-atomic molecule and give an example.
• (ii) Define Avogadro’s number?
• (iii) What is matter? How many states it has?
• (iv) A patient has goiter. How will it be detected?
• (v) Give three properties of positive or canal rays.
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• (vi) What is Newlands law of octaves?
• (vii) Why size of an atom increase from top to bottom in periodic table?
• (viii) What are transition metals?
• Write short answers to any FIVE questions:
• (i) Give any two major properties of metals.
• (ii) Write any two differences between polar and non-polar compounds.
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• (iii) Differentiate between lone pair and bond pair of electrons.
• (iv) Define Charle’s law of gases.
• (v) What is meant by boiling point?
• (vi) Define molarity.
• (vii) What is meant by solvent? Give one example.
• (viii) Define solubility.
• Write short answers of any FIVE questions.
• (i) What is the differentiate between valency and oxidation state?
• (ii) Why is steel plated with nickel before electroplating of chromium?
• (iii) What is salt bridge? What function it performs in galvanic cell?
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• (iv) Write the half cell reaction occurring on cathode and anode in Daniel cell.
• (v) Why is copper used for making electrical wires?
• (vi) Why is calcium more electropositive than magnesium?
• (vii) Can pure gold be used for making ornaments? If not why?
• (viii) Write any two used for sodium metal.
• SECTION–II),  Note: Attempt any TWO questions. Each question carries 09 marks.
• 5. (A) Write any five properties of cathode rays.
• (B) Write notes on any four branches of chemistry.
• 6. (A) Define hydrogen bonding. Also write its effect on the physical properties of molecules.
• (B) What is meant by boiling point? Discuss the effect of any three factors it.
• 7. (A) Write any five rules for assigning oxidation number.
• (B) Discuss the effect of temperature on solubility.