Hey buddy my name is Summit and I’m looking for HSC Maharashtra Board Science Question Paper for that will you please help me here?

[Sumit Bhardwaj]

On your demand buddy I will help you here to get the HSC Maharashtra Board Science Question Paper so that you can prepare hard for exam.


Here is HSC Maharashtra Board Science Question Paper
Q. 1. Select and write the most appropriate answer from the given alternatives for each sub-question: [7]

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.


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HSC Maharashtra Board Science Question Paper