Maharashtra State Board of Technical Education 2009 Diploma in Hospital Management (E - Basic Chemistry) - Question Paper

SCHEME - E
Sample ques. Paper
Course Name: All Branches of Diploma in Engineering / Technology.
Course Code : AE/CD/CE/CH/CM/CO/CR/CS/CV/DE/ED/EE/EI/EJ/EN/EP/ET/EV/
EX/FC/FE/IC/IE/IF/IS/IU/ME/MH/MI/MU/PC/PG/PN/PS/PT
Semester : First
Subject : Basic Chemistry
Time : three Hours Marks: 100

Instructions: 1. All ques. are compulsory.
2. Figures to the right indicate full marks.
3. presume suitable data if necessary.

Q.1 Attempt any TEN of the following: 20 Marks
a) State Aufbau’s principle.
b) Differentiate ranging from atomic number and atomic mass number.
c) describe electrolyte and non-electrolyte.
d) State Faraday’s 1st legal regulations of electrolysis.
e) State any 2 assumptions of Arrhenius theory of ionization.
f) discuss the terms gangue and flux.
g) Classify alloys with examples of every.
h) What is alnico? Write its composition.
i) Write the uses of asbestos as an insulator.
j) Name 4 synthetic rubbers
k) describe BOD of sewage.
l) List 4 particulates responsible for pollution.

Q.2 Attempt any 4 of the following: 16 Marks
a) Write 4 assumptions of Bohr’s atomic theory.
b) provide 4 points of distinction ranging from energy level and sub energy level.
c) Write orbital electronic configuration of subsequent elements 13Al27, 20Ca40,
10Ne20, 16S32.
d) define the formation of MgO molecule with diagram and name the kind of
bonding.
e) discuss the terms Isotopes & Isobars with examples.
f) describe degree of ionization. discuss factors affecting the degree of ionization.
12002

Q.3 Attempt any 4 of the following: 16 Marks
a) Draw diagram and discuss the construction of dry cell.
b) When the identical amount of current was passed through the solutions of CuSO4
and ZnSO4 kept in series. 0.7 and 0.7164 Gms. Copper and Zinc was
deposited on Cathode respectively. If atomic weight of Copper is 63.5,
compute the equivalent weight of Zinc.
c) discuss the mechanism of electrolysis of aqueous Copper sulphate solution
using Copper electrodes.
d) Justify the subsequent
( i ) Copper is electro refined when used for electrical purposes.
( ii ) The object, which is to be plated, is connected to cathode of an
electrolytic cell
( iii ) The colour of Copper sulphate solution fades when Platinum electrode
is used.
( iv ) The process of ionization is reversible.
e) define the process of silver plating of Iron spoon.
f) Name the methods of refining of metal. discuss any 1 of them.

Q.4 Attempt any 4 of the following: 16 Marks
a) describe the terms: Ductility, Tensile Strength, Weldability, Machinability.
b) Write composition, properties and applications of Duralumin or Monel metal
c) discuss with labelled diagram the method used for concentration of sulphide
ore.
d) Distinguish ranging from Calcinations and Roasting
e) provide characteristics of Insulating materials.
f) discuss the fusion method for the preparation of alloy.

Q.5 Attempt any 4 of the following: 16 Marks
a) Write the principle of addition polymerization and provide 1 example.
b) define the process of Vulcanization of natural rubber. Why is it necessary to
vulcanize rubber?
c) How air Pollution destructs Ozone layer? discuss Green House Effect.
d) define the bad effects of Chemical fertilizers on the underground water
e) provide Reasons:
(i) PVC is soft where as Backelite is hard.
(ii) Fillers are added in compounding of plastic.
f) State any 2 properties of rubber & write its related engineering Application.

Q.6 Attempt any 4 of the following: 16 Marks
a) Write preparation, properties & applications of thermacole.
b) discuss Air pollution due to internal combustion engine. provide any 1 method
to control Pollution due to Auto Emission.
c) discuss causes of Water Pollution.
d) Write preventive measures of water pollution.
e) provide the role of forestation and green cover in preventive environmental
management (PEM).
f) elaborate the kinds of waste? provide the origin and effect of E-waste.

Earning:   Approval pending.