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Chemistry
List of top Chemistry Questions
Which of these is least likely to act as Lewis base?
UP CPMT - 2014
UP CPMT
Chemistry
Acids and Bases
Basic strength is maximum for
UP CPMT - 2014
UP CPMT
Chemistry
Amines
Magnesium burns in air to give
UP CPMT - 2014
UP CPMT
Chemistry
GROUP 1 ELEMENTS
$\left[ Ni ( CO )_{4}\right]$
is a diamagnetic complex. All the electrons in the complex are paired.
AIIMS - 2014
AIIMS
Chemistry
properties of d block elements
$NaOH$
cannot be stored in a vessel made of aluminium or zinc. A protective layer of oxide is formed on the surface of the metal.
AIIMS - 2014
AIIMS
Chemistry
GROUP 1 ELEMENTS
Monoclinic sulphur is an example of monoclinic crystal system. For a monoclinic system,
$a\ne b\ne c$
and
$\alpha=\gamma=90^{\circ}, \beta=90^{\circ}$
.
AIIMS - 2014
AIIMS
Chemistry
The solid state
Conductivity of all electrolytes decreases on dilution. On dilution number of ions per unit volume decreases.
AIIMS - 2014
AIIMS
Chemistry
Electrochemistry
Chloroform is stored in dark coloured bottles. Chronic chloroform exposure may cause damage to liver and kidneys.
AIIMS - 2014
AIIMS
Chemistry
Haloalkanes and Haloarenes
$CaF _{2}$
has been given the name fluorspar. Solid
$CaF _{2}$
emits light when heated.
AIIMS - 2014
AIIMS
Chemistry
Properties of Solids
Boron always forms covalent bond. The small size of
$B ^{3+}$
favours formation of covalent bond.
AIIMS - 2014
AIIMS
Chemistry
Group 13 Elements
$Al _{2} O _{3}$
is converted to aluminium by reduction with carbon. Carbon (graphite) has greater affinity for oxygen than
$Al$
.
AIIMS - 2014
AIIMS
Chemistry
GROUP 14 ELEMENTS
An LPG cylinder, containing
$15\, kg$
butane at
$27^{\circ} C$
and
$10\, atm$
pressure, is leaking. After one day, its pressure decreased to 8 atm. The quantity of gas leaked is
AIIMS - 2014
AIIMS
Chemistry
Ideal gas equation
In the reaction shown below, the major product(s) formed is/are
JEE Advanced - 2014
JEE Advanced
Chemistry
Chemical Reactions
Which one of the following is an example for biodegradable polyester?
KEAM - 2014
KEAM
Chemistry
Polymers
Williamson?? synthesis of preparing dimethyl ether is a/an
KEAM - 2014
KEAM
Chemistry
Alcohols, Phenols and Ethers
Magnetic moment 2.83 BM is given by which of the following ions? (At. no. Ti =22, Cr=24, M n=25, N i=28)
AIPMT - 2014
AIPMT
Chemistry
d -and f -Block Elements
IUPAC name of the compound
JIPMER - 2014
JIPMER
Chemistry
Organic Chemistry - Some Basic Principles and Techniques
In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from
$0.75\, g$
of sample neutralized
$10\, mL$
of
$ {1 \, M \, H_2SO_4}$
. The percentage of nitrogen in the soil is :
AIPMT - 2014
AIPMT
Chemistry
Organic Chemistry - Some Basic Principles and Techniques
The correct order of solubility of the sulphates of alkaline earth metals in water is
$Be > Mg > Ca > Sr > Ba$
. This is due to
JIPMER - 2014
JIPMER
Chemistry
GROUP 1 ELEMENTS
Which is the correct sequence of solubility of carbonates of alkaline earth metals?
JIPMER - 2014
JIPMER
Chemistry
GROUP 1 ELEMENTS
What is the structural formula of lithium tetrahydrido aluminate ?
AIIMS - 2014
AIIMS
Chemistry
Chemical bonding and molecular structure
Find the major product in the following reaction,
AIIMS - 2014
AIIMS
Chemistry
Stoichiometry and Stoichiometric Calculations
Which one amongst of the following isomerism is shown by
$\left[ Pt \left( NH _{3}\right)_{2} Cl _{2}\right]$
?
AIIMS - 2014
AIIMS
Chemistry
Isomerism in Coordination Compounds
Europium is
AIIMS - 2014
AIIMS
Chemistry
The Lanthanoids
The stability of ferric ion is due to
AIIMS - 2014
AIIMS
Chemistry
subshell electronic configuration
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