10th Class Chemistry Guess Paper

Full book important short and long questions as a form of 10th class chemistry guess paper written by Miss Kishwar Nazeer. These notes are very helpful in the preparation of the 10th class chemistry guess paper of Chemistry for the students of the Matriculation and these are according to the paper patterns of all Punjab boards.

Summary and Contents:
Topics which are discussed in the notes are given below:
  • Here are the detailed 10th chemistry guess paper to help you prepare for your exams.
  • Important Short and Long Questions from Chemistry Urdu Medium.
  • When a system is in equilibrium, then:  (A) Concentration of reactants and products becomes equal (B) The opposing reactions stop (C) The rate of reverse reaction is very   (D) The rate of forward and reverse reaction becomes equal
  • In dynamic equilibrium:  (A) The reaction stops to proceed (B) The quantities of reactants and products becomes equal (C) The rate of forward and reverse reaction becomes equal   (D) The reaction can no longer be reversed
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  • In an irreversible reaction, dynamic equilibrium:  (A) Never establishes (B) Establishes before the completion of reaction (C) Establishes after the completion of reaction   (D) Establishes readily
  • Reverse reaction is:  (A) Which takes place from left to right (B) In which reactants react to form products (C) Which gradually slow down   (D) Which gradually speeds up
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  • In the lime kiln, the reaction goes to completion because:  (A) High temperature (B) CaO is more stable than CaCO3 (C) Constant release of CO2  (D) CaO is not dissociated CaO
  • In a chemical reaction, the substances which react together are called: (A) Reactants (B) Products (C) Equilibrium  (D) Numerator
  • The color of iodine is: (A) Black (B) Yellow (C) Purple  (D) Green
  • At equilibrium state, there are possibilities: (A) Two (B) Three (C) Four  (D) Five
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  • The color of HI is: (A) Orange (B) TPurple (C) Red  (D) Colorless
  • The substances which are formed during a chemical reaction are called: (A) Products (B) Reactants (C) Radicals  (D) Elements
  • In the beginning, the rate of reverse reaction is: (A) Less (B) Moderate (C) Very fast  (D) Slow
  • Guldberg and Waage put law of mass action in: (A) 1859 (B) 1869 (C) 1889  (D) 1879
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  • Define chemical equilibrium state.
  • Give the characteristics of reversible reaction.
  • How is dynamic equilibrium established?
  • Why at equilibrium state reaction does not stop?
  • Why is equilibrium state attainable from either way?
  • What is the difference between reactants and products? Give example.
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  • Write any two macroscopic characteristics of forward reactions.
  • Write two possibilities of chemical equilibrium state.
  • How can you know that a reaction has achieved an equilibrium state?
  • Describe any two macroscopic characteristics of dynamic equilibrium.
  • Write general formula and one example of alkane.
  • Define functional group of alcohols. And explain alcohols with examples.
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  • What is the functional group of ethers? Give examples of ethers.
  • Define carboxylic group and write their general formula.
  • Why are the alkanes used as fuel?
  • Why alkane can’t be oxidized with KMnO4 solution?
  • What are open chain hydrocarbons? Give an example.
  • Why hydrocarbons are considered as basic organic compounds?
  • What do you know about hydrogenation of alkanes?
  • What do you know about halogenation of alkanes?
  • What is meant by substitution reaction? Give an example.
  • Write two differences between acids and bases.
  • What is the difference between Arrhenius base and Lowry Bronsted base?
  • Define pH What is the pH of pure water?
  • What is meant by pH? Write down the uses of pH.
  • The solution of hydrochloric acid is 0.01M. What is its pH?
  • Na2SO4 is a neutral salt while NaHSO4 is an acid salt, justify?
  • How are the soluble salts recovered from water?
  • Why a salt is neutral, explain with an example?
  • How can you justify that is a basic salt?
  • You are in a need of an acidic salt. How can you prepare it?
  • Define normal salts. And give example.
  • How sodium carbonate Na2CO3 is prepared from Solvay’s process?
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  • Write the advantages of Solvay’s process.
  • How urea is manufactured? Explain by showing the flow sheet diagram?

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