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Note: Time allowed for section B and C is 2 hours and 40 minutes.

SECTION “B” Marks: 40
II. Attempt any TEN Parts out of the following. Each Part carries equal marks.
i. Write the properties of Canal Rays.
ii. Calculate the no. of oxygen atoms in 22g of
iii. Explain Avogadro’s law.
iv. How gases deviate from ideal behaviour?
v. Explain why water droplet is spherical?
vi. Differentiate between plane of symmetry & axis of symmetry.
vii. What is common ion effect?
viii. Determine the PH of 0.15M NaOH solution.
ix. What is the effect of temperature on rate of reaction?
x. Write note on Fuel cell.
xi. Explain electrochemical series.
xii. Differentiate between Anode & Cathod?
xiii. Define Enthalpy & Standard Enthalpy.


SECTION “C” Marks: 27
Note: Attempt any THREE questions of the following. Each question carries equal Marks.
III. (a) Explain limiting & excess reactant.
(b) Balance the following equation by half reaction method.
(i) (ii)

IV. (a) Define dipolmoment. How does it help to find out the geometry of molecule?
(b) Explain bonding in with the help of MOT.

V. (a) State & explain law of Mass action.
(b) A mixture of 1 Mole acetic acid & 3 Moles of ethyl alcohol is heated at . Calculate
the moles of ethyl acetate at equilibrium. Kc = 4.

VI. Write short note on any three of the following:
(a) Hybridization (b) Voltaic cell
(c) Valence bond theory (d) Hydrogen bonding