1st year Chemistry Most Important Short Questions

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1st year Chemistry Most Important Short Questions 2022

1st-year Chemistry Most Important Short Questions






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1st-year Chemistry Most Important Short Questions 

11TH Chemistry Most Important Short Questions






1st year Chemistry Most Important Short Questions


  • Define stoichiometry give two assumptions for stoichiometric calculation?
  • How percentage yield is calculated?
  • Define Avogadro s number give one example?
  • Different between the stationary phase and the mobile phase in chromatography?
  • What is ether extraction?
  • Derive avogadros law from kmt?
  • Why the graph plotted between pressure and volume move away from pressure higher temperature?
  • Calculate SI unit of R gas constant?
  • Why does the pilot feel uncomfortable breathing at high altitudes?
  • State Raoult's law gives one mathematical expression?
  • Relative lowering of vapor pressure is independent of temperature justify?
  • Give two applications of colligative properties?
  • What are dipole forces give one example?
  • Name the factors which affect the London forces?
  • Cleavage of the crystal is itself anisotropic behavior explain?
  • Define transition temperature with two examples?
  • Why cathode rays are also called electrons?
  • Write down any four properties of positive rays?
  • Define spectrum and name any two types of the spectrum?
  • For azimuthal quantum number L= 2 and L= 3 calculate the total values of quantum number m?
  • How does equbilium constant Kc predict the direction of a reaction?
  • Define ph And write how it is helpful to know the nature of solutions?
  • What do you mean by order of reactions give two examples?
  • What is the effect of temperature on the rate of chemical reaction also write the Arrhenius equation?
  • Bond distance is the compromise distance between two atoms justified?
  • Write down the two postulates of vesper theory?
  • Differentiate between covalent and coordinate covalent bonds?
  • Draw the hypothetical orbital picture of the He2 molecule according to M.O.T?
  • Define enthalpy of formation with an example?
  • Prove q=∆E?
  • Calculate the oxidation number of the elements underlined :(a) Na2Po4?
  • How does the salt bridge maintain the electrical neutrality in the cell justify?
  • What is a standard hydrogen electrode (SHE)



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These 1st-year Chemistry Most Important Short Questions have also come in Lahore board final exams and also very important for all students then we decide to upload on our website so that the students easily find the and can prepare your final exams or class test. 



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We notice that maybe some students ould not understand about Q.1, Q.2 and Q.3 but we tell you clearly this is the board paper pattern as you will see in your final exams have three sections of short questions. The first sections will have to contain 12 Questions, Q.2 will also contain 12 Questions but last Q.3 will contain 9 or 8 questions. So Now you understand our given options.


1st-year Chemistry Most Important Short Questions

11TH Class Chemistry Most Important Short Questions