7/31/2019 2012-03-20-023
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(a) Fill in the blanks by choosing words from the following:
Bromine water, total, equal, less, zinc, fluorine, acid, sum,
product, silver, phenyl chloride, phenyl isocyanide, neutral,
alkali,
cyanide, amine, Feh1ing's solution
(i) When two liquids form an ideal solution, the vapour pressure
of the
solution is the of the partial vapour pressures of the two
liquids.
(ii) Mac Arthur-Forrest process is used for the preparation
of
(iii) ____L_____ on reduction gives amine and on hydrolysis
gives
(iv) lodoform on reaction with aniline in
presence of alcoholic _______ gives
(V) Glucose and sucrose can be
distinguished by while glucose and fructose can be distinguish
by _______. [5]
(b) Complete the following sjfatemgnts by
selecting the correct alternatives from thle choices given
below: [5]
(i) The mole fraction of a solute of a 1 molal aqueous solution
is
(ii) Which best explains why increasing
of the temperature increases the reaction rate:
(a) The total number of collisions increases.
(b) The pressure of a
system increases.
(c) More molecules have enough energy to collide
effectively.
(d) The activation energy required i8 lowered.
(iii) Addition of 3 g of urea (mol. wt. 60) to 100 g of a
solvent causes the Same
lowering in Vapour pressure as the addition of an ideal solute A
to 200 8
of the solvent. The molecular weigm of A is
(b) 60 (d) 90
