Previous Year SSC Science Stream Papers of Maharastra Board

Will you provide me previous year SSC science stream question papers of Maharastra Board ?

[Kiran Chandar]

Here you asking about the previous year SSC science stream question papers of Maharastra Board Maharashtra Board offers following subjects in HSC Science stream:

Mathematics - I
Mathematics - II
Biology (Botany) Paper - I
Biology (Zoology) Paper – II
Chemistry Paper - I
Chemistry Paper – II
Physics Paper - I
Physics Paper - II

I am here providing you two question of the Chemistry Paper – I .

Chemistry Paper – I

Q. A. Answer any SIX of the following: [12]
i. What is the action of the following reagents on ammonia:
a. Nessler’s reagent
b. Sodium metal
ii. State the first and second law of electrolysis.
iii. Draw neat and labelled diagram of Bessemer converter used in the extraction of copper.
iv. Derive the relation between half-life period and rate constant for first order reaction.
v. Derive the relation between G and equilibrium constant (K) for the reaction,
aA + bB  cC + dD.
vi. Explain brown ring test with the help of chemical equation.
vii. Explain, why do aquatic animals prefer to stay at lower level of water during summer?
viii. Distinguish between:
Crystalline solids and Amorphous solids.

Q. Select and write the most appropriate answer from the alternatives given below each subquestion:
[7]
i. To prepare n-type semiconductor, the impurity to be added to silicon should have the
following number of valence electrons:
(A) 2 (B) 3
(C) 4 (D) 5
ii. Number of faradays of electricity required to liberate 12 g of hydrogen is _______.
(A) 1 (B) 8
(C) 12 (D) 16
iii. What is molecular formula of oleum?
(A) H2SO3 (B) H2SO4
(C) H2S2O7 (D) H2S2O8
iv. Purification of aluminium by electrolytic refining is carried out by _______.
(A) Hoope process (B) Hall Process
(C) Baeyer process (D) Serperck process
v. The rate of reaction for certain reaction is expressed as:
1
3
  d A
d t
= – 1
2
  d B
d t
= –
  d C
d t
The reaction is _______.
(A) 3A  2B + C (B) 2B  3A + C
(C) 2B + C  3A (D) 3A + 2B  C
vi. A system absorbs 640 J heat and does work of 260 J, the change in internal energy of the
system will be _______.
(A) + 380 J (B) – 380 J
(C) + 900 J (D) – 900 J
vii. Which of the following is ‘not’ a colligative property?
(A) Vapour pressure (B) Depression in freezing point
(C) Elevation in boiling point (D) Osmotic pressure

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Will you provide me previous year SSC science stream question papers of Maharastra Board ?

i wanted the oct 14 physics n maths qt ppr.can someone pls post it