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Chemistry
List of top Chemistry Questions
The non aromatic compound among the following is :
AIEEE - 2011
AIEEE
Chemistry
Structural Representations Of Organic Compounds
Heating of
$NH _{4} NO _{3}$
gives
AMUEEE - 2011
AMUEEE
Chemistry
p -Block Elements
The IUPAC name of the compound is
AMUEEE - 2011
AMUEEE
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A reactant (A) forms two products :
$ {A ->[k_1] B,} $
Activation Energy
$Ea_1$
$ {A ->[k_2] C,}$
Activation Energy
$Ea_2$
If
$Ea_2 = 2 Ea_1$
, then
$k_1$
and
$k_2$
are related as :
AIEEE - 2011
AIEEE
Chemistry
Chemical Kinetics
Iron is extracted by
COMEDK UGET - 2011
COMEDK UGET
Chemistry
General Principles and Processes of Isolation of Elements
An intensive property is
COMEDK UGET - 2011
COMEDK UGET
Chemistry
Thermodynamics
A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows
KCET - 2011
KCET
Chemistry
Solutions
Which of the following is an example of Maximum boiling azeotrope?
AMUEEE - 2011
AMUEEE
Chemistry
Solutions
A 5% solution of cane sugar (molar mass 342) is isotonic with 1% of a solution of an unknown solute. The molar mass of unknown solute in g/mol is:
AIEEE - 2011
AIEEE
Chemistry
Solutions
To prepare 2 $dm^3$ of decinormal solution of oxalic acid, the mass of oxalic acid required is
COMEDK UGET - 2011
COMEDK UGET
Chemistry
Solutions
The rate constant of a reaction is
$\text{mol} \,L^{-}\, S^{-1}$
. The reaction is
AMUEEE - 2011
AMUEEE
Chemistry
Chemical Kinetics
Which one of the following is an example for pseudo first order reaction?
COMEDK UGET - 2011
COMEDK UGET
Chemistry
Chemical Kinetics
For a first order gas phase reaction-
$A_{\left(g\right)} \to 2B_{\left(g\right)} + C_{\left(g\right)}$
P be initial pressure of A and P the total pressure at time 't'. Integrated rate equation is
AIIMS - 2011
AIIMS
Chemistry
Chemical Kinetics
Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is
JEE Advanced - 2011
JEE Advanced
Chemistry
Some basic concepts of chemistry
Equivalent and molecular masses are same in
COMEDK UGET - 2011
COMEDK UGET
Chemistry
Some basic concepts of chemistry
12 g of Mg with excess of HCI at NTP gives
COMEDK UGET - 2011
COMEDK UGET
Chemistry
Some basic concepts of chemistry
The molality of a urea solution in which 0.0100 g of urea,
$[(NH_2)_2CO]$
is added to 0.3000
$dm^3$
of water at STP is:
AIEEE - 2011
AIEEE
Chemistry
Some basic concepts of chemistry
What is the equivalent weight of
$SnCl _{2}$
in the following reaction,
$SnCl _{2}+C l_{2} \rightarrow S n C l_{4} ?$
AFMC - 2011
AFMC
Chemistry
Some basic concepts of chemistry
What is the time (in sec) required for depositing all the silver present in
$125\, mL$
of
$1\, M \, AgNO _{3}$
solution by passing a current of
$241.25 \, A$
? (
$IF = 96500$
coulombs)
AFMC - 2011
AFMC
Chemistry
Electrolysis
$Mg ^{2+}$
is isoelectronic with
AFMC - 2011
AFMC
Chemistry
Molecular Orbital Theory
Which one of the following species is diamagnetic in nature?
AIIMS - 2011
AIIMS
Chemistry
Molecular Orbital Theory
Most stable carbocation is
Delhi UMET/DPMT - 2011
Delhi UMET/DPMT
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
In Kjeldahl's method, the nitrogen present is estimated as
UP CPMT - 2011
UP CPMT
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Most stable carbocation is
DUET - 2011
DUET
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
: Methyl cyanide has higher boiling point than methyl isocyanide. : Dipole moment of methyl cyanide is higher than that of methyl isocyanide.
AIIMS - 2011
AIIMS
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
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