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Chemistry
List of top Chemistry Questions
Which of the following is not reducing sugar?
JIPMER - 2011
JIPMER
Chemistry
Biomolecules
The yellow precipitate formed during the chromyl chloride test is chemically _____
KCET - 2011
KCET
Chemistry
d block elements
The IUPAC name of these is
KCET - 2011
KCET
Chemistry
Nomenclature Of Organic Compounds
The following two reactions are known
${Fe2O3(s) + 3CO(g) -> 2Fe(s) + 3CO2(g); \Delta H = - 26.8 \, kJ }$
${FeO(s) + CO (g) -> Fe(s) + CO2(g); \Delta H - 16.5 \, kJ}$
The value of
$\Delta H$
for the following reaction
${Fe2O3(s) + CO(g) -> 2FeO(s) + CO2(g) }$
is
NEET (UG) - 2010
NEET (UG)
Chemistry
Thermodynamics
The vapour density of ozone is
BITSAT - 2010
BITSAT
Chemistry
Some basic concepts of chemistry
Chloride ion and potassium ion are isoelectronic. Then :
BITSAT - 2010
BITSAT
Chemistry
Classification of elements and periodicity in properties
Hyperconjugation involves
BITSAT - 2010
BITSAT
Chemistry
reaction mechanism
Phosphate pollution is caused by:
BITSAT - 2010
BITSAT
Chemistry
Water pollution
Experiment to study kinetics of the dissociation of hydrogen peroxide must be performed by group of two or three so that -
BITSAT - 2010
BITSAT
Chemistry
Chemical Kinetics
In redox reaction
$1\, g$
-eq of reducing agent requires
$Pgm$
-e of oxidising agent. The value of
$P$
is
BITSAT - 2010
BITSAT
Chemistry
Oxidation Number
Eutrophication causes reduction in
BITSAT - 2010
BITSAT
Chemistry
Water pollution
Which of the following pairs has both members from the same period of periodic table :
BITSAT - 2010
BITSAT
Chemistry
Modern Periodic Law And The Present Form Of The Periodic Table
In the periodic table, with the increase in atomic number, the metallic character of an element
BITSAT - 2010
BITSAT
Chemistry
Modern Periodic Law And The Present Form Of The Periodic Table
Which of the following statements is/are true? 1.
$PH _{5}$
and
$BiCl _{5}$
do not exist. 2.
$pm - d \pi$
bond is present in
$SO _{2}$
. 3.
$I _{3}{ }^{+}$
has bent geometry. 4.
$SeF _{4}$
and
$CH _{4}$
have same shape.
BITSAT - 2010
BITSAT
Chemistry
The Valence Shell Electron Pair Repulsion (VSEPR) Theory
When the temperature is raised, the viscosity of liquid decreases this is because
BITSAT - 2010
BITSAT
Chemistry
Liquid state
Coolant used in car radiator is aqueous solution of ethylene glycol. In order to prevent the solution from freezing at
$-0.3^{\circ} C$
. How much ethylene glycol must be added to
$5\, kg$
of water ?
$\left( K_f =1 \cdot 86\, Kg\, mol ^{-1}\right)$
BITSAT - 2010
BITSAT
Chemistry
Colligative Properties
Three separate samples of a solution of a single salt gave these results. One formed a white precipitate with excess ammonia solution, one formed a white precipitate with dil.
$HCl$
solution and one formed a black precipitate with
$H_{2} S$
. The salt could be
BITSAT - 2010
BITSAT
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Which of the following is similar to graphite
BITSAT - 2010
BITSAT
Chemistry
Group 13 Elements
Liebig? method is used for the estimation of
BITSAT - 2010
BITSAT
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
On treatment of propanone with dilute $Ba(OH)_2$, the product formed is
VITEEE - 2010
VITEEE
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Which of the following expressions correctly represents the equivalent conductance at infinite dilution of
${Al2(SO4)3}$
? Given that
${\wedge^{\circ}_{Al^{3+}}}$
and
${- \wedge^{\circ}_{SO^{2-}_4}}$
are the equivalent conductances at infinite dilution of the respective ions
NEET (UG) - 2010
NEET (UG)
Chemistry
Electrochemistry
The correct sequence which shows decreasing order of the ionic radii of the elements is
AIEEE - 2010
AIEEE
Chemistry
trends in periodic table
The bond order of
$CO$
molecule is
WBJEE - 2010
WBJEE
Chemistry
Molecular Orbital Theory
The species having pyramidal shape is
JEE Advanced - 2010
JEE Advanced
Chemistry
Hybridisation
Frenkel defect is generally observed in
VITEEE - 2010
VITEEE
Chemistry
Imperfections in Solids
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