LinkedIn Insight B.Sc.-Basic Chemistry-II-Mumbai-November 2017 - Grad Plus

B.Sc.-Basic Chemistry-II-Mumbai-November 2017

MUMBAI UNVERSITY

Subject: Basic Chemistry-II

Semester: 1

Total Time: 2½ Hours]
Total Marks: 75
Note 1 Attempt all questions.

2. All questions carry equal marks.
3. Draw neat labeled diagrams wherever necessary
4. Use of log tables and non-programmable calculator is allowed
5. For Q2, Q3, and Q4 attempt A and B OR C and D.
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Q.1) Do as directed: (Any fifteen)

Define:

1) Chirality.

2) Racemic Mixture.

3) Titrand.

4) Acid-Base Indicator

5) Transmittance

6) Partition coefficient,

Fill in the Blanks:

 7) n-butane and 2-methyl-propane are _____________  isomers of each other.

 

 

 

8) Is the ________________ projection formula of tartaric acid.

9) ____________ in a chemical reaction is when the number of moles of acid s becomes equal to the number of moles of the base.

10) ____________  is the ability of a solute molecule to dissolve in a solvent.

11) ______________ is used as stationary phase in paper chromatography.

12) _______________ detector is used in colorimeter.

State True false.: 

13) Configuration is the relative position of the atoms in a molecule that can be changed exclusively by cleaving and forming new chemical bonds. 

14) Epimers are mirror images of one another.

15) In gravimetric analysis, a cation is used to form a soluble compound with anion to the determined.

16) Precipitation implies coming out of solution.

17) tungsten bulb is a source of visible light.

18) Unit of absorbance is M/L

Name the following.

19) A type of titration based on a reduction-oxidation reaction between the analysis and titrant.

20) Type of chromatography in which mobile phase is more nonpolar than stationary phase.

 

Q. 2) A) What are Constitutional isomers? Explain the different types of constitutional isomers with suitable examples.

 

Q 2) B) Differentiate between their and Ertho Compounds with examples.

 

OR

 

Q. 2) C) What are the different types of projection formulae:? Explain with examples.

 

Q. 2) D) What are Meso compounds? state their properties.

 

Q. 3) A) What are Primary Standards? Explain their characteristics and give examples.

 

Q. 3) B) What is precipitation? What kind of analysis is it used for and how?

 

OR

 

Q. 3) C) What is gravimetric analysis? State its application.

 

Q. 3) D) Explain the choice and suitability of indicators used in titrimetry.

 

Q. 4) A) State and derive mathematical expression of Beer- Lambert’s law.

 

Q. 4) B) What is the distribution ratio? How it is used to separate molecules in solvent extraction.

 

OR

 

Q. 4) C) Explain the principle of thin-layer chromatography and give any two applications.

 

Q. 4) D) Distillation is a separation technique based on volatility nature of molecules Justify.

 

Q. 5) Write a short note on (any Three)

a) Diastereomers.

b) Fischer projection formulae.

c) Titration Errors.

d)  Ascending paper chromatography.

e) Filters in the colorimeter.

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