Download OU Intermediate 2018 Core Subjects 0123 Chemistry Question Paper

Download OU (Osmania-University) Intermediate 2018 Core Subjects 0123 Chemistry Previous Question Papers

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Total No. ol'Qm-slinm 2| chd.
Total No. of Primed l?ugcs ~ 2 No. Q, C ?0 ? \LJ lil' [(1 J ('13
Part - l"
CHEMISTRY, Paper-|
(Engllsh Version)
Time : 3 Hours] |Max. Marks : 60
Note : Read the following instructions carc?Jlly :
(i) Answer all questions ot?Scctiun ? ?A?. Answer any six questions in Section 'B?
and answer any two questions in Section - ?C?.
(ii) In Section ? ?A?. questions from Sr. Nos. I In It) arc of Very Short Answer
typc. Each question carries two marks. Every answer may be limited to two or
three sentences. Answer all these questions at one place in the same order.
(iii) In Section - ?3?: questions from Sr. Nos. II to 18 are of Shon Answer Type.
Each question carries four marks. Every answer may be limited to 75 words.
(iv) In Section ? ?C'. questions from Sr. Nos. I9 to 2| arc of Long Answer Typc.
Each question carries eight marks. Every answer may be limited to 300 Words.
(v) Draw labelled diagrams wherever necessary for questions in Sections v- ?8?
and ?C?.
SECTION ? A l0 x 2 = 20
Note : Answer all questions.
State ?rst law ofthcnnodynamics.
State Graham?s law of diffusion.
Calculate the oxidation number of Manganese (Mn) in MnO; ion.
What is Lewis acid ?3 Give one example.
Lithium reacts with water less vigorously than sodium. Give reason.
What happens when magnesium metal is burnt in air 2?
What is Biochemical Oxygen Demand (BOD) '?
Write lUPAC names of the following stmctures ;
(8) CH3 ? CH2 ? CH2 ? CH = (?H2
? 0
II
(b) CHJ?(?Hzl?C (?H?
cums (Dny-l n I 1 on I P.1?.0.

0. Which gases cause Green House Effect 1?
ML State Hess law otconstam heat summation
SECTION \ 8
Note : Answer any six questions.
6x4=24
(LL/ Write the postulates of kinetic molecular theOry ofuas'es.
l2. Balance the following equation in acid medium by lon-clcctmn method :
x 3 V V ?
I5e ' r (?1',(). ? 4 Fe + ( r '~
Lu.) - (.tql (ml) (ml)
)3; Explain hybridisation ofphosphorpus in the formation ot?PC/?_
14. Discuss the application 0f Le-Chatlier?s principle for the industrial synthesis of
Sulphur trinxidc (803).
J/f What is Hydrogen bond ?.? How many types 2? Give one example each.
K Write two oxidation and two reduction reactions of Hydrogen pemxide.
,W Explain the structure of Dihorane.
)8?? Give hybridisation ofcarhon in
ta) C0": ? (b) diamond (c) graphite (d) fullerene
SECTION?C 2x8=16
Note : Answer any two questions.
_ M What are the postulates of Bohr?s model of hydrogen atom ?.? Explain the formation of
lines in the Hydrogen spectrum.
2% ? How the following properties varies in a group and in a period ?3
(a) Atomic radius . (b) lonisation enthalpy
(c) Electronegativity ((1) Electron gain enthalpy
2!. Write any two methods of preparation of ethylene. How does it reacts with the
following ?.?
(a) Cold. dil. alk. KMnO4
(b) Brz/CC/4
?23m (Day-l I) I 2 0f2 I
It, ?
gm-