Maharashtra Board HSC Chemistry Question Paper

[Anuj Bhola]

Would you please give here sample question paper for HSC Chemistry course of Maharashtra state Board ?

As you requires here I am giving you sample question paper for HSC Chemistry course of Maharashtra state Board.

Sample paper :

Q. 1. Select and write the most appropriate answer from the given alternatives for each sub-question:
i. In body centred cubic structure the space occupied is about
(A) 68 % (B) 53 %
(C) 38 % (D) 32 %

ii. For a gaseous reaction the unit of rate of reaction is
(A) L atm s–1 (B) atm mol–1 s–1
(C) atm s–1 (D) mol s

iii. Which of the following compounds contains S = O as well as S = S bonds?
(A) Sulphuric acid (B) Thiosulphuric acid
(C) Sulphurous acid (D) Thiosulphurous acid

iv. Which of the following solutions shows maximum depression in freezing point?
(A) 0.5 M Li2SO4 (B) 1 M NaCl
(C) 0.5 M Al2(SO4)3 (D) 0.5 M BaCl2

v. For a chemical reaction ∆S = – 0.035 kJ/K and ∆H = – 20kJ.
(A) 5.14 K (B) 57.14 K
(C) 571.4 K (D) 5714.0 K

vi. The standard e.m.f of the following cell is 0.463 V
(1M) (1M) Cu |Cu ||Ag | ++ + Ag. If O
Ag E = 0.800 V,
What is the standard potential of Cu electrode?
(A) 1.137 V (B) 0.337 V
(C) 0.463 V (D) –0.463 V

vii. Fe2O3 is reduced to spongy iron near the top of blast furance by
(A) H2 (B) CaO
(C) SiO2 (D) CO

Q. 2. (A) Answer any SIX of the following: [12]
i. Distinguish between crystalline solid and amorphous solid.
ii. State Kohlrausch Law and write mathematical expression of molar conductivity of the given
solution at infinite dilution.
iii. Write cell reactions in lead storage battery during discharge.
iv. Draw structures and write geometry of PCl3 and PCl3.
v. Prove that ∆H = ∆U + ∆n RT. What is the condition under which ∆U = ∆H?
vi. Mention names and formulae of two ores of aluminium.
vii. Derive the relationship between relative lowering of vapour pressure and molar mass of
nonvolatile solute.
viii. What is pseudo first order reaction? Give one example of it.

Answer any ONE of the following: [7]
i. a. Explain with reason sign conventions of ∆S in the following reactions :
1. N2(g) + 3H2(g) ⎯→ 2NH3(g)
2. CO2(g) ⎯→ CO2(s)
b. Explain the following terms:
1. Smelting
2. Flux
c. Gold occurs as face centred cube and has a density of 19.30 kg dm–3. Calculate atomic radius of
gold. (Molar mass of Au = 197)
ii. a. Explain the trends in the following properties with reference to group 16:
1. Atomic radii and ionic radii
2. Density
3. ionisation enthalpy
4. Electronegativity
b. In the electolysis of AgNO3 solution 0.7g of Ag is deposited after a certain period of time.
Calculate the quantity of electricity required in coulomb.
(Molar mass of Ag is 107.9 g mol–1).
c. Define Osmosis.
Maharashtra Board HSC Chemistry Question Paper