B.Sc.-Basic Chemistry-I-Mumbai-November 2017
MUMBAI UNIVERSITY
Subject: Basic Chemistry
Semester: 1
[Total Time: 2 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 calculators is allowed.
5) For Q2, Q3, Q 4, attempt A and B OR C and D
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Q. 1) Do as Directed: (Any Fifteen) (15M)
Give IUPAC names for the following compounds.
1) CH3-NH2
2) C3H7-COOH
3) CH3-CHO
4) CH4
5) CH3-CO-CH3
6) CH3 -O-CH3
7) CH3 OH
Explain the terms :
8) Atomic radii
9) Formula unit
10) Lewis Base
11) Acidic solutions
12) Buffer action
13) Solute
14) pH
15) Molality
16) ppm
17) Ionic product of water.
Give one example for:
18) Compound exhibiting covalent bond
19) Compound exhibiting ionic bond.
20) Salts derived from weak acids and weak bases
Q. 2) A) Draw structures of the following compounds. (8M)
i) 3-Pentanol
ii) Methyl chloride
iii) Proespane dioic acid
iv) 2-Butanone
Q. 2) B) State basic rules of IUPAC nomenclature in Amines. (7M)
OR
Q. 2) C) Draw structures of the following compounds. (8M)
i) 1- Butanol
ii) Ethyl bromide
iii) Butnedioic acid
iv) 2,3 – Hexanedione
Q. 2) D) Discuss IUPAC nomenclature of Alkenes. give suitable examples. (7M)
Q. 3) A) Explain the term Van der Waals forces? Justify the gaseous nature of ethane. (8M)
Q. 3) B) Draw elections dot structure of any three ionic compounds and state features of ionic bond. (7M)
OR
Q. 3) C) Explain the nature of Coordinate bond using suitable examples. (8M)
Q. 3) D) Describe the shapes of BeCl2 and BF3. (7M)
Q. 4) A) i) What are the requirements for a substance to be used as a primary standard. (4M)
ii) 10 grams of sodium hydroxide was dissolved in water to give a solution with a volume of exactly 0.2 dm3 What is the molarity of the solution? ( Molar mass of NaOH=40). (4M)
Q. 4) B) Explain the structure of a water molecule. (7M)
OR
Q. 4) C) i) Explain hydrolysis of weak acids and strong bases. (4M)
ii) Calculate pH of 0.015M HCl Solution. (4M)
Q. 4) D) Derive Henderson- Hasslbalch equation for acidic buffer. (7M)
Q. 5) Write short notes on (Any three) (15M)
a) Cyclic hydrocarbons.
b) Dicarboxylic acids.
c) Hydrogen bond
d) Applications of buffers
e) Hydrophobic effect.
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