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BOARD OF TIME COLLEGIATE
INTERMEDIATE EXAMINATION, 2017 (PRELIMINARY)
CHEMISTRY PAPER – II
Sir Rehman
TOTAL MARKS: 85
DATE: 11-04-2017
TIME: 3 HOURS
SECTION ‘A’
(Multiple Choice Questions)
– (M.C.Qs)
Note:
i)
ii)
Q1.
Select the most appropriate answer for each from the given options:
Max. Marks: 17
Time: 20 minutes
This section consists of 17 part questions and all are to be answered. Each question carries one mark.
Do not copy down the part questions in your answerbook. Write only the answer in full against the
proper number of the question and its part.

i)
ii)
iii)
iv)
v)
vi)
vii)
The atomic number of an element belonging to group V A and 3rd period is:

*7
* 13
* 15
* 23
On burning in excess of oxygen, sodium forms its:
* Superoxide
* Peroxide
* Monoxide
* Dioxide
This has the minimum hydration energy:
* Na+
* K+
* Rb+
* Cs+
The chemical formula 2CuCO3.Cu(OH)2 stands for:
* malachite
* copper pyrite
* chalorite
* azurite
An example of electron deficient hydrides is:
* BH3
* NaBH4
* NaH
* CH4
Aqua regia is a mixture of:
* Dil HNO3 and Dil HCl in 3:1 by Vol.
* Conc. HCl and Conc. HNO3 in 3:1 by Vol.
* Conc. HCl and Conc. HNO3 in 1:3 by Vol. * Conc. H2SO4 and Conc. HNO3 in 1:3 by Vol.
Which gives substitution reaction.
* H
H
H
H
|
|
|
 C  C  C  C  H
|
|
H
H
H
C
/
H
ix)
x)
xi)
xii)
xiii)
xiv)
xv)
xvi)
xvii)
 H
H
\
viii)
 C  C  C
|
H
*
* H
/
 C
* None of these
\
H
The metal ion having the highest number of unpaired electrons is:
* Mn+2
* Fe+2
* Co+2
* Ni+2
Which of the following is vitamin B1
* Riboflavin
* Tocopherol
* Thiamine
* Ascorbic acid
2° propyl alcohol undergoes oxidation to produce
* Ethyl methyl ether * Aceteone
* Propanal
* 2° propyl chloride
This imparts green colour to glass:
* Cr2O3
* CuO
* CoO
* ZnO
The functional group present in cresol is:
* Phenolic - OH
* carboxylic, -COOH * Alcoholic, -OH
* Aldehydic, - CHO
When fats or oils left exposed to warm moist air for a long time, it gives offensive odour this is
known as:
* Sapnification * Rancidification
* Acid value * Zwitter ion
The chlorination of methane (CH4) is an example of:
* Addition reaction
* Substitution reaction * Elimination reaction * Oxidation reaction
The boiling point range 40°–200°C is for this fraction of petroleum:
* Wax * Gasoline
* Heavy oil
* Kerosene
This functional group is present in Oil and fats:
* Carboxylic acid
* Alcholic group
* Aldehydic group
* Ester group
Glucose and Fructose are:
* Position Isomers
* Chain Isomers
* Functional group isomers * Metamers
BOARD OF TIME COLLEGIATE
INTERMEDIATE EXAMINATION, 2017 (PRELIMINARY)
CHEMISTRY PAPER – II
Sir Rehman
SECTION ‘B’ (Short Answer Questions)
Marks: 40
Note: Attempt any Ten part questions. Select Five part questions from Inorganic Chemistry and Five part
questions from Organic Chemistry. All questions carry equal marks.
INORGANIC CHEMISTRY
Q2.
(i)
Refer to the list given compounds
A
B
Hypo
Ruby
Write a.
b.
c.
d.
C
Potassium Permanganate
D
Suhaga
The formulae of A and D
Color of B and C
Identify the basic salt and write chemical equation for its preparation
Effect of heat on C
(ii)
Write the valence shell electronic configuration for IIA, IIB, VIIA, VIIB and predict
group, period and block for elements X and Y having atomic number 13 and 42
respectively.
(iii)
Give Reasons :
* Na+ is smaller than Na atom but Cl– ion is larger than Cl atom.
* Concentrated HNO3 does not react with Aluminium metal.
* Ionic Hydride are called true Hydride.
* Why is Boric acid soft.
(iv)
Give equations for the following (attempt any FOUR):* Reaction of NaOH with Ferric Chloride.
* Hydrogen is reacted with carbon monoxide dissolved in water in the presence
of catalyst at 500oC
* Lead chromate is digested with sodium hydroxide
* Action of Aluminium with NaOH.
* Reaction of Ferric oxide with Aluminium
* Reaction of Benzene with Sulphuric acid
(v)
a.
b.
Name the lightest gas that exists. Why is it misfit in 1-A also write down its use
in atomic state.
Differentiate between the natural isotopes of Hydrogen.
(vi)
a.
b.
Explain the following behavior of Diamond and Graphite * Electric conduction.
What is allotropy ? Explain briefly amorphous form of sulphur.
(vii)
Describe the preparation of chlorine gas by Castner–Kellner? (Diagram is not
required)
(viii) Name the following complexes according to I.U.P.A.C
* [Co(en)2 Cl2] NO3 * [Cr(H2O)4 Cl2]+
* K[MnO4]
* K2[Fe(NH3)2(C2O4)2]
BOARD OF TIME COLLEGIATE
INTERMEDIATE EXAMINATION, 2017 (PRELIMINARY)
CHEMISTRY PAPER – II
Sir Rehman
ORGANIC CHEMISTRY
(ix)
Define the following:
* Peptide bond
* Reforming * Homologous series
* Acid value
(x)
The structures of two significant organic molecules (A and B) are shown below:
H2C = CH2
HC  CH
(A)
(B)
a. Draw and explain the hybrid orbital structure of B
b. Write the equation for the preparation of:
* Mustard gas form A
* Acetaldehyde from B
(xi)
What would be the major monochloro product (or products) formed when each of the
following compounds reacts with chlorine in presence of ferric chloride?
* Ethyl benzene
* Trifluoro methyl benzene
* Methyl benzoate
* Benzoic acid
(xii)
Write down the equation for the preparation of following compounds from ethyl
bromide.
* Ethyl acetate
* Ethyl amine * Butane
* Ethyl Mercaptan
OR
What are the organometallic compounds? How will you prepare the following from
the CH3MgBr also write the mechanism of:
* Vinegar
* Ethanol
* Ethane
(xiii) a. Draw all the possible structures of C4H10 and name them by I.U.P.A.C. system.
b. What is alcohol? Classify monohydric alcohols.
(xiv)
a. Differentiate between fats and oils.
b. How would you distinguish between:
* Aldehyde and ketone
* Cyclo hexane and benzene
(xv)
Giver the equations for the preparation of the following:
* Methanal from Methanol
* 2-propanol from I-propanol
* Ethyne from Vicinal dichloride * Methane from ethyl acetate
(xvi)
Write the IUPAC names of the following organic compound
*CH2=CH-C≡CH
*Br3C.COOH
│
C2H5
O
║
*CH3-CH2-C-CH2.OH
* C6H5-COO-C(CH3)3
BOARD OF TIME COLLEGIATE
INTERMEDIATE EXAMINATION, 2017 (PRELIMINARY)
CHEMISTRY PAPER – II
Sir Rehman
SECTION “C”
(DETAILED ANSWER QUESTION)
Marks: 28
Attempt any Two questions ––– One question from Inorganic Chemistry and the other
from Organic Chemistry. Both questions carry equal marks.
Note:
INORGANIC CHEMISTRY
Q3.
a.
b.
c.
Q4.
a.
b.
c.
d.
Describe the extraction of pure aluminium from bauxite
containing iron oxide and silica as impurities.
Define the term binary compounds of hydrogen. Name their various classes. Also give
the preparation and properties of metallic hydrides.
OR
Define ligands. Classify them on the basis of coordinating atoms give two examples for
each.
Complete the following reactions :Heat
* AgNO3 

Dilute
* Zn + HNO3 

Heat 100 C
* H3BO3 
Dilute
* Cl2 + NaOH 

Describe briefly the Ostwald process for the manufacture of HNO3.
Describe the extraction of sodium from common salt.
OR
Describe the types of elements on the basis of electronic configuration.
Give actions of:* Concentrated Nitric acid on phosphorous
* Concentrated Sulphuric acid on cane sugar
* Mixture of concentrated Nitric Acid and Concentrated Sulphuric acid on benzene
* Concentrated Sulphuric acid on Hydrogen Sulphide
Write the name and formulae of oxy acids of boron and mention the effect of heat.
ORGANIC CHEMISTRY
Q5
a.
b.
c.
Q6.
a.
b.
c.
Describe molecular orbital treatment of benzene.
Give equations for the following reactions:*PVC from ethyne
*Propanone from Calcium ethanoate
*Picric acid from chloro benzene
*Ethyne from Ethene
*Benzoic acid from benzene
How is absolute alcohol obtained by the fermentation of Starch. What do you mean by
rectified spirit and methylated spirit?
What is meant by an elimination reaction? Explain the mechanism of unimolecular
elimination reaction?
From Benzene, how will you obtain the following compounds?
* Acetophenone
* iso-Propyl benzene
* Bromobenzene
* p-Nitro benzoic acid
OR
Differentiate between reducing and non-reducing sugars. Draw the structure of
sucrose showing the glycosidic linkage.
What is meant by thermosetting plastic and thermoplastic? Draw the structure of
PVC and Bakelite.
OR
Define detergent ? Why are they better then soap? How do they work.