Loading⦠Page 1. Whoops! There was a problem loading more pages. Retrying... 2nd PUC Chemistry Sep 2015.pdf. 2nd PUC C
For More Question Papers Visit - www.pediawikiblog.com RURAL P U COLLEGE, KANAKAPURA - 56ztr7 RAMANAGAM DISTRICT
Fl RST
TEST, SEPTEM BER-zor5
Subject: CHEMISTRY Time: t hr.30 Min
Class:
II
PUC
Subject Code 34 Max. Marks : 35
PART.. A
.
8. How does aluminium oxide reacts with Graphite by Electrolysis? Give 9. How does pcl5 reacts with ethanoic acid? Give thoEquation.
the Equation
ib
10. Explain Fittig's reaction withan example.
3x2=6
defect in solids?
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6. Calculate the number of atoms in F.C.C unit cell? 7. Give two differences between schottky and Frenkel
g.
PART _ B II. Answer any TIIREE questions of the following
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2. Give an example for Diamagnetic substance. i 3. What is copper matte? 4. Name the gas produced, when white-p reacts with hot NaoH solution? 5. What are Freons?
m
5x1:5
Answer atl the following questions:1. What is a unit cell?
PART-C ,€ III. Answer any THREE of the following questions. 11. With aneat diagram, explain manufacture of ammania.
3x3:9
ik
a
J
Wrih the Molecular formula, skucture and basicity of Pyrophosphoric acid. Write all the reactions that taking place in the Blast furnace. 14. (A) Explain Mond's process of refining of nickel? "or.dJ *'.. What is Roasting? -L?.(B) 16" (A) Explain Froth floatation process ? tr@) what is pig.Iron? 12.
J a J 2
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13.
a
1
ia
2
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PART - I) r.!, IV. Answer any THREE of the following questions. 18.*) Calculate packing efficiency in F.C.C unit cell.
)g B) What is aparamagnetic substance?
I 5 x 2=10 3
example
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Give an 2 20.A) A metal has F.C.C structure and the edge length of its unit cell is 408.6 pm. Calculate the density of the metal. [atomic mass of 3 JrfJB)Explain electrical conductivifv of Insulators by using band 2 z2'.A) what are n-ty'pe and p-t1,pe semi-conductors ?Give an 3 %.8) Give tw'o differences between non Ideal and Ideal solutions 2 24.A) State Henry's law. Give its two 3 ?r5.8) Define (i)Raoult's taw (ii) 2
metal:l0g]
uses Molaliry
theory example. ?
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PART -E V. Answer any THREE of the following questions. 26.A) Explain the mechanim of SNl rJaction
X.B)
Explain Swarts reaction with an example 28. A) Expalin Friedel-craft's acylation reaction with reaction $-B) Give two differences between sN2 and sNl reactions ry,q Give the IUPAC name for (CH3)3CCH2Br *
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