Maharashtra board question papers

Hi I want the HSC Maharashtra Board question paper
Of Chemistry so can you provide me ?

[Kiran Chandar]

As you want the HSC Maharashtra Board question paper
Of Chemistry so here I am providing you

HSC Maharashtra Board 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.

iii. 300 M mol of perfect gas occupies 13 L at 320 K. Calculate the work done in joules when the gas
expands –
a. isothermally against a constant external pressure of 0.20 atm.
b. isothermal and reversible process.
c. into vaccum until the volume of gas is increased by 3L. (R = 8.314 J mol–1 k–1)

iv. What is the action of the following reagents on ammonia?
a. Excess of air
b. Excess of chlorine
c. Na metal

Q. 4. 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.


Chemistry: Section – I





Chemistry: Section – II

i want question paper of 2016 hsc board.

I want 2005 to 2017 question papers . Subjects are chemistry, physics, biology, Marathi, mathematics, English.

Hi buddy here I am looking for Maharashtra board science subject question papers to do preparation of this exam so will you plz provide me same here ???

[sumit]

As you are asking for Maharashtra board science subject question papers , so on your demand I am providing same here :

Q.1. Select and write the most appropriate answer from the given alternatives (along with its
alphabet number) for each sub-question: [7]
i. The phenotypic ratio of incomplete dominance is _______.
(A) 1 : 1 (B) 3 : 1
(C) 1 : 2 : 1 (D) 9 : 3 : 3 : 1
ii. Nucleoside is a nucleotide without _______.
(A) sugar (B) nitrogen base
(C) hydrogen bond (D) phosphate group
iii. Which of the following is white button mushroom?
(A) Agaricus bisporus (B) Pleurotus florida
(C) Volvariella volvacea (D) Candida sp.
iv. Brown rust of wheat is caused by _______.
(A) viruses (B) bacteria
(C) fungi (D) aphids
v. The reaction centre of PS-II is _______.
(A) Chl a, 700 (B) Chl a, 680
(C) Chl a, 673 (D) Chl a, 650
vi. The enzymes required for synthesis of ATP are located on _______.
(A) oxysomes (B) cristae
(C) matrix (D) ribosomes
vii. In a food chain, the herbivores are represented by _______.
(A) producers (B) primary consumers
(C) secondary consumers (D) decomposers
Q.2. (A) Answer each question in One sentence only: (6)[12]
i. What is leaching?
ii. Define chemoautotrophs.
iii. Name the cell organelle in which Krebs cycle occurs.
iv. What is deforestation?
v. Give the microbial source of Vit. B12.
vi. What is primary treatment of sewage?

Maharashtra board science subject question papers