2018
CHEMISTRY
(Theory)
Full
 |
| chamistry |
marks:70 Pass marks:21
Time : Three
hours
The figures in the margin indicate full
marks for the questions.
1. State
whether true or false:
In Schottky defect, in order to maintain electroneutrality, the number of missing cations and anions are equal.
2. Give
the definition of solubility of a substance.
3. Why
is N2 less reactive at room temperature?
4. Give
the structural formula of 2- Methylpropan
-2-ol.
5. Arrange
the following compounds in increasing order of their boiling points:
CH3CHO, CH3CH2OH,
CH3-O-CH3, CH3CH2CH3.
6. Arrange
the following compound in the increasing order of their basic strength in
aqueous solution:
NH3,C2H5NH2,(C2H5)2NH,(C2H5)3H
7. What
are essential amino acids?
8. What
is Chemotherapy?
9. Show that to total vapour pressure over the
solution of two liquids 1 and 2 at a particular temperature varies linearly
with the mole fraction of a component.
10.
1.8g of
glucose (C6H12O6) is dissolved in 100g of Water in beaker. At what temperature
will water in the solution boiled at 1.013 bar? Given boiling point of pure water at 1.013 bar is 373.15K and Kb
for water is 0.052K kgmol-1.
11.
Starting
from the integrated rate law of a zeroth order reaction, R à P,
show that half life time of the reaction is directly proportional to the
initial molar concentration of the reactant.
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