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Nov Dec 2019.pdf-P.T.O. Total No. of Questions— 8
Nov_Dec_2019.pdf-P.T.O. Total No. of Questions— 8
Nov Dec 2019.pdf-P.T.O. Total No. o...
Nov_Dec_2019.pdf-P.T.O. Total No. of Questions— 8
Page 3
[5667]-104
3
P.T.O.
5.
(
a
)
What are the problems involved in storage and transportation
of hydrogen ? Explain any
two
methods of hydrogen
storage.
[6]
(
b
)
Explain the structure, properties and applications of
fullerene.
[4]
(
c
)
What are the isotopes of carbon ? Give their applications. [3]
Or
6.
(
a
)
Differentiate between the structure, properties and applications
of diamond and graphite.
[6]
(
b
)
Give the preparation and applications of silane and
germane.
[4]
(
c
)
Explain the manufacture of hydrogen by steam reforming of
methane.
[3]
7.
(
a
)
Explain the hydrogen evolution and oxygen absorption mechanism
of wet corrosion.
[6]
(
b
)
Discuss any
four
factors affecting the rate of corrosion. [4]
(
c
)
Define galvanization. Explain the process involved with the help
of a neat diagram.
[3]
CEGP013091
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CEGP013091
49.248.216.238 22/11/2019 13:45:17 static-238
CEGP013091
49.248.216.238 22/11/2019 13:45:17 static-238
Page 4
[5667]-104
4
Or
8.
(
a
)
What is the principle of cathodic protection ? Explain cathodic
protection using sacrificial anode and impressed current
method.
[6]
(
b
)
Write the mechanism of dry corrosion due to oxgyen. What
is Pilling-Bedworth ratio ? Give its significance.
[4
(
c
)
Explain electroplating with help of figure and reactions
involved.
[3]
CEGP013091
49.248.216.238 22/11/2019 13:45:17 static-238
CEGP013091
49.248.216.238 22/11/2019 13:45:17 static-238
CEGP013091
49.248.216.238 22/11/2019 13:45:17 static-238
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