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AIEEE Chemistry (2009)

AIEEE Chemistry (2009)
Created by Quizmagic Team on Jan 09, 2013 06:46 PM
There are 20 questions of AIEEE Chemistry 2009 examination. Take this quiz to test your knowledge of Chemistry .
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Questions
20
Minutes
15
High Score
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00:37
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Sample Questions

Question 1
The bond dissociation energy of B – F in BF3 is 646 kJ mol-1 whereas that of C-F in CF4 is 515kJ mol-1. The correct reason for higher B-F bond dissociation energy as compared to that of C- F is :
smaller size of B-atom as compared to that of C- atom
lower degree of pπ- pπ interaction between B and F in BF3 than that between C and F in CF4
stronger  σ bond between B and F in BF3 as compared to that between C and F in CF4
significant pπ-pπ interaction between B and F in BF3 whereas there is no possibility of such interaction between C and F in CF4
Question 2
The two functional groups present in a typical carbohydrate are :
- OH and -CHO
-CHO and -COOH
-OH and -COOH
> C = O and - OH
Question 3
The set representing the correct order of ionic radius is :
Mg2+ > Be2+ > Li+ > Na+
Li+ > Na+ > Mg2+ > Be2+
Na+ > Li+ > Mg2+ > Be2+
Li+ > Be2+ > Na+ > Mg2+
Question 4
The IUPAC name of neopentane is
2,2-dimethylbutane
2-methylbutane
2-methylpropane
2, 2-dimethylpropane
Question 5
The number of stereoisomers possible for a compound of the molecular formula CH3−CH=CH−CH(OH)−Me is :
4
3
2
6
Question 6
A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution ?
n-heptane shows +ve deviation while ethanol shows –ve deviation from Raoult’s law
The solution is non-ideal, showing +ve deviation from Raoult’s law.
The solution formed is an ideal solution
The solution is non-ideal, showing –ve deviation from Raoult’s law.
Question 7
Calculate the wavelength (in nanometer) associated with a proton moving at 1.0 x 103 ms-1 (Mass of proton = 1.67 x 10-27 kg  and h = 6.63 x 10-34 Js ):
0.40 nm
2.5 nm
0.032 nm
14.0 nm
Question 8
In context with the transition elements, which of the following statements is incorrect ?
In the highest oxidation states, the transition metal show basic character and form cationic complexes.
In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes
Once the d5 configuration is exceeded, the tendency to involve all the 3d electrons in bonding decreases
In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding
Question 9
Using MO theory predict which of the following species has the shortest bond length ?
O22+
O22-
O2-
O2+
Question 10
Solid Ba(NO3)2 is gradually dissolved in a 1.0 x 10-4 M Na2CO3  solution. At what concentration of Ba2+ will a precipitate begin to form ?(Ksp for Ba CO3 = 5.1 × 109).
4.1 x 10-5 M
8.1 x 10-7 M
5.1 x 10-5 M
8.1 x 10-8 M
X
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