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Chemistry
List of top Chemistry Questions
Smoke is an example of :
Chemistry
Atmospheric pollution
Small liquid droplets dispersed in another liquid is called
Chemistry
Classification of Colloids
$SiO_2$
is a/an
Chemistry
Acids and Bases
$SiH_4 + NaOH + H_2O-------> X + 3H_2 X$
in the above reaction is
Chemistry
Allotropes of carbon
Select the species acting as reductant and oxidant in the following.
$ {PCl3 + Cl2 -> PCl5}$
Chemistry
Balancing a redox reaction
Sea divers go deep in the sea water with a mixture of which of the following gases?
Chemistry
Group 16 Elements
Red colour complex ion formed on adding
$FeCl_3$
to S.E. (sodium extract) when N and S both are present in organic compound is
Chemistry
Methods Of Purification Of Organic Compounds
A unit in nucleic acid which contains ??ase-sugar phosphate??unit is called
Chemistry
Nucleic Acids
Total volume of atoms present in a face centred cubic unit cell of a metal is (
$ r= $
atomic radius)
Chemistry
packing efficiency
In colloid particles, range of diameter is
Chemistry
Classification of Colloids
Moderate electrical conductivity is shown by
Chemistry
Allotropes of carbon
Identify the correct statements from the following a) Li and Mg form solid hydrogen carbonates b) LiCl and
$ {MgCl_2}$
are soluble in ethanol c)
$ {KO_2}$
is soluble in water and liberates
$ {O_2}$
and
$ {H2O_2}$
Chemistry
Modern Periodic Law And The Present Form Of The Periodic Table
Calculate the volume (in L) of hydrogen gas liberated at
$27^{\circ}C$
and 760 mm pressure during the treatment of 1.2 g of magnesium with excess hydrochloric acid [Atomic mass of Mg = 24]
Chemistry
Conductance
Match the column I and column II and mark the appropriate choice.
Chemistry
Group 16 Elements
Match the column I with column II and mark the appropriate choice.
Chemistry
Hydrogen Bonding
Match L ist-I with List-II. Choose the correct answer from the options given below.
Chemistry
Atmospheric pollution
What is the approximate percentage of
$ {{H}_{2}}{{O}_{2}} $
in a sample labelled as 10 vol?
Chemistry
Hydrogen Bonding
The reaction which carried out in the presence of homogeneous catalyst is
Chemistry
Surface Chemistry
Soap lather is an example of
Chemistry
Classification of elements and periodicity in properties
Which of the following cannot be a rock salt type crystal?
Chemistry
Classification of elements and periodicity in properties
If the unit of rate and rate constant are same for a reaction, the order of reaction will be
Chemistry
Classification of elements and periodicity in properties
For a first order reaction the incorrect representation is
Chemistry
Classification of elements and periodicity in properties
During electrolysis of dilute
$H_2SO_4$
, the gas evolved at anode is
Chemistry
Classification of elements and periodicity in properties
For Freundlich adsorption isotherm the graph of log x/m vs log P, the slope has a value of
Chemistry
Classification of elements and periodicity in properties
If the unit of rate and rate constant are same for a reaction, the order of reaction will be
Chemistry
Classification of elements and periodicity in properties
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