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Chemistry
List of top Chemistry Questions
When acetylene is treated with HBr, the product is
Chemistry
Hydrocarbons
When acidified
$K_2Cr_2O_7$
solution is added to
$Sn^{2+}$
salts, then
$Sn^{2+}$
changes to
Chemistry
d -and f -Block Elements
When
$AgNO_3$
is heated strongly the products formed are
Chemistry
p -Block Elements
When alkyl aryl ether is heated with HI, it gives
Chemistry
Alcohols, Phenols and Ethers
When a solid melts there is
Chemistry
Thermodynamics
When a mixture of air and steam is passed over red hot coke, the outgoing gas is
Chemistry
p -Block Elements
When a mixture of NaCl and KCl is heated with cone.
$H_2SO_4$
and
$K_2Cr_2O_7$
. The red gas obtained is
Chemistry
p -Block Elements
When a metal is to be extracted from its ore and if the gangue associated with the ore is silica, then
Chemistry
General Principles and Processes of Isolation of Elements
When a lead storage battery is discharged
Chemistry
Electrochemistry
When a lead storage battery is charged it acts as
Chemistry
Electrochemistry
When a lead storage battery is discharged
Chemistry
Galvanic Cells
When a colloidal solution is viewed from the direction at right angles of light beam, the path of the beam is illuminated due to scattering of light. In the figure
$(A)$
and
$(B)$
are
Chemistry
Surface Chemistry
When 2-pentyne is treated with dil.
$H_2SO_4$
and
$HgSO_4$
the product formed is
Chemistry
Hydrocarbons
When
$1$
mol
$CrCl_{3}\cdot 6H_{2}O$
is treated with excess of
$AgNO_{3}$
,
$3$
mol of
$AgCl$
are obtained. The formula of the complex is
Chemistry
coordination compounds
When 2-bromobutane reacts with alcoholic KOH, the reaction is called
Chemistry
Haloalkanes and Haloarenes
When 0.5 ampere of electricity is passed in aqueous solution of
$AgNO_3$
for 200 seconds,the amount of silver deposited on cathode is(Z = 0 001118 g C'for Ag)
Chemistry
Electrochemistry
When
$0.1$
Faraday of electricity is passed in aqueous solution of
$AlCl_3$
, the amount of
$Al$
deposited on cathode is
Chemistry
Electrochemistry
What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?
Chemistry
d -and f -Block Elements
What would be the atomic number of the next halogen if discovered in future?
Chemistry
Classification of elements and periodicity in properties
What will be the molar conductivity of
$AL^{3+}$
ions at infinite dilution if molar conductivity of
$Al_2(SO_4)_3$
is
$858\, S \,cm^2 \,mol^{-1}$
and ionic conductance of
$SO^{2-}_4$
is
$160\, S\, cm^2\, mol^{-1}$
at infinite dilution?
Chemistry
Electrochemistry
What will be the melting point of
$KCl$
if enthalpy change for the reaction is
$7.25\, J\, mol^{-1}$
and entropy change is
$0.007\, J \,K^{-1}\, mol^{-1}$
?
Chemistry
Thermodynamics
What will be the emf of the following concentration cell at
$25^{\circ}C$
?
$Ag_{\left(s\right)}\left|AgNO_{3}\left(0.01\,M\right)\right|\left|AgNO_{3}\left(0.05\,M\right)\right|Ag_{\left(s\right)}$
Chemistry
Electrochemistry
What type of stoichiometric defect is shown by
$ZnS$
?
Chemistry
The solid state
What volume in litres will be occupied by
$4.4 \,g$
of
$C0_2$
at
$STP$
?
Chemistry
States of matter
What type of hybridisation takes place in the N atom of
$NH_3$
?
Chemistry
Chemical bonding and molecular structure
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