BSc Sem I 2023 2024 Dec 2024 & CHEMISTRY II Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 A Multiple choice questions (Attempt any nine) 9 marks
   • 1. The number of molecules whose concentration determines the rate of the reaction is
   • a) Molecularity of reaction b) Rate of reaction
   • c) Order of reaction d) Pseudo order reaction
   • 2. The friction in a flowing fluid is called as
   • 3. Plant gets water through the roots because of
   • 4. A reaction in which all the reactants are in the same phase called
   • 5. The first temperature at which solid changes into turbid liquid is known as
   • 6. The property of an element to form a long chain of same atom is 7, When concentration of reaches to 0.8ppm it can cause instant death is an example of Green house gases
   • 9. The hydroxides of Group I elements are _ in water and alcohol
   • 10. having asymmetric carbon atoms but still optically inactive are called as
   • 11. Geometrical isomerism is due to rotation of carbon carbon double bond
   • 12. In Fischer projection formula, the horizontal bonds are the plane of
   • 13. Isomers of a compound which are not related as mirror images are called as ‘ Q.1.B Match the columns. 03
   • c) Sink of CO iii) Drop number FYBSC SEMI CHEMISTRY 75 marks
2. Q1 C State True or False. 3 marks
   • i) The most common method to stop the reaction is chilling or freezing the reaction
   • 11) SOz affects the visibility and leads to reduction in brightness, contrast between the Fischer projection formula, if two similar yroups are on the same side it is called as a
3. Q2 Attempt any four. 20 marks
   • A. Explain Pseudo First order reaction with suitable example
   • B. What is the Second order reaction? Derive the integrated rate law for a second order reaction with equal initial concentration
   • C. Write the difference between order and molecularity of a reaction
   • D. First order reaction is 25% complete in 30 minutes. Calculate the specific reaction rate and half time
   • E. What is Liquid crystal? Write the classification and application of the liquid crystal
   • F. Define Surface tension of liquid. How is it measured by using Stalagmometer?
4. Q3 Attempt any four. 20 marks
   • A. Explain occurrence, properties and uses of
   • B. Explain the Greenhouse effect with its consequences
   • C. Describe metallic and non-metallic characters of main group elements using appropriate
   • D. Write a short note on — Anomalous behavior of
   • E. Give a method of preparation of sodium bicarbonate. Write balanced equation for the action of heat and acid on sodium bicarbonate
   • F. Explain the diagonal relationship between B and Si
5. Q4 Attempt any four
   • A. What is Stereoisomerism? Explain Geometrical isomerism with examples
   • B. What is a Racemic mixture? Explain Resolution of racemic mixture C, What are Enantiomers? State the characteristics of Enantiomers
   • D. Explain Optical ir Lactic acid and Tartaric acid
   • E. What is meant by Projection formula? Explain Fischer projection formula in detail
   • F. Distinguish between: - i) Enantiomers and Diastereomers and ii) Optical isomerism and

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