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Federal (FBISE) · Quarter book test · Free

10th Class Chemistry 2nd Quarter Book Paper

40 marks · 1 hour · 28 questions. Covers: 4 chapters (05. Reaction Kinetics to 08. Organic Chemistry).

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10th Class Chemistry 2nd Quarter Book Paper

10th Class · Chemistry · Federal (FBISE)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 40Time: 1 hour

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

  1. The formula of ethyne is:
    1. C₂H₆
    2. C₂H₂
    3. C₂H₄
    4. C₂H₈
  2. The catalyst used in the Contact Process is:
    1. Iron oxide
    2. Vanadium pentoxide
    3. Nickel
    4. Platinum
  3. Which insoluble base reacts with H₂SO₄ to produce copper(II) sulphate?
    1. CaCO₃
    2. CuO
    3. NaOH
    4. Zn
  4. Which of the following is NOT a factor affecting the rate of reaction according to collision theory?
    1. Number of particles per unit volume
    2. Activation energy
    3. Presence of a catalyst
    4. Molar mass of reactants
  5. The IUPAC name of HCOOH is:
    1. Ethanoic acid
    2. Propanoic acid
    3. Methanoic acid
    4. Butanoic acid
  6. Which oxide reacts with water to form carbonic acid (H₂CO₃)?
    1. SO₂
    2. CO₂
    3. CaO
    4. Na₂O
  7. Which of the following methods is used to prepare a salt by titration?
    1. Acid + Metal
    2. Acid + Insoluble Base
    3. Acid + Insoluble Carbonate
    4. Acid + Alkali
  8. Slowing down specific reactions in food products is achieved by:
    1. Adding acids
    2. Increasing transportation time
    3. Controlling temperature and humidity
    4. Using high pressure only
  9. The suffix used for naming alkanes is:
    1. -ol
    2. -ane
    3. -ene
    4. -oic acid
  10. The Contact Process is used for the manufacture of:
    1. Nitric acid
    2. Sulphuric acid
    3. Hydrochloric acid
    4. Acetic acid
  11. Which of the following is insoluble in water?
    1. Potassium nitrate (KNO₃)
    2. Calcium carbonate (CaCO₃)
    3. Ammonium chloride (NH₄Cl)
    4. Sodium sulphate (Na₂SO₄)
  12. When more reactant particles are present in a given volume:
    1. Reaction slows down
    2. Collisions increase and reaction is faster
    3. Activation energy increases
    4. Products remain unchanged

Q2. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

  1. Write the general reaction of metals with dilute acids.
  2. Define structural formula.
  3. Why does a catalyst remain unchanged at the end of a reaction?
  4. Which salts are always soluble according to solubility rules?
  5. Write the reaction showing the formation of PAN.
  6. Write the general formula of esters.
  7. State one role of chemical kinetics in the food industry.
  8. What happens to the ions in an ionic compound when it dissolves in water?
  9. Write the reaction for the formation of sulphuric acid (H₂SO₄) from SO₃.
  10. Draw the displayed formula of methane.
  11. State the unit of rate of reaction in SI units.
  12. Write the reaction between HCl and NaOH leading to the formation of NaCl.

Q3. Long questions (Attempt any 3 of 4 · 3 × 4 = 12)

  1. Given the esters methyl methanoate, ethyl ethanoate, and butyl butanoate, Give the starting materials required to produce these esters.
  2. Discuss the optimum conditions required in the Contact Process and explain why they are necessary.
  3. Discuss the properties of salts that make them solid at STP and have high melting points.
  4. Explain the role of the catalyst in the reaction mechanism, including its effect on activation energy.