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Chemistry
List of top Chemistry Questions
Ethanamine is treated with nitrous acid at ordinary temperature, the products will be
Chemistry
Amines
Equivalent weight of
$ {NH_3}$
in the change,
$ {N_2 -> NH_3}$
is
Chemistry
Redox reactions
Equivalent weight of
$ {FeS_2}$
(mol wt = M) in the following reaction is
$ {FeS_2 + O_2 -> Fe_2O_3 + SO_2}$
Chemistry
Redox reactions
Equivalent weight of
$I_2$
in the reaction,
$ {I_2 + 5 Cl_2 + 6 H_2O -> 2 \, HIO_3 + 10 HCl}$
is
Chemistry
Redox reactions
Equivalent mass of oxidising agent in the reaction
$ {SO_2 + 2H_2S -> 3S + 2H_2O}$
is
Chemistry
Redox reactions
Equivalent weight of
$ {CuSO_4}$
in terms of its molecular weight M in the following reaction is
$ {2 CuSO_4 + 4 KI -> Cu_2 I_2 + I_2 + 2 K_2SO_4}$
Chemistry
Redox reactions
Equivalent weight of
$FeC_2O_4$
in the change,
$ {FeC2O4 -> Fe^{3+} + CO2}$
Chemistry
Redox reactions
Equanil is an example of ..........
Chemistry
Chemistry in Everyday Life
Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats
$(C_p/C_v)$
of the mixture will be :
Chemistry
Enthalpy change
Equal masses of
$SO_2,CH_4$
and
$0_2$
are mixed in empty container at 298 K, when total pressure is 2.1 atm. The partial pressure of
$CH_4$
in the mixture is
Chemistry
States of matter
Enolic form of acetone has
Chemistry
Chemical bonding and molecular structure
Enthalpy of sublimation of a substance is equal to
Chemistry
Thermodynamics
Elements
$X$
,
$Y$
and
$Z$
have atomic numbers
$19$
,
$37$
and
$55$
respectively. Which of the following statements is true about them?
Chemistry
Classification of elements and periodicity in properties
Elements of group-
$15$
form compounds in
$+5$
oxidation state. However, bismuth forms only one well characterised compound in
$+5$
oxidation state. The compound is
Chemistry
p -Block Elements
Element X forms a chloride with the formula
$XCl_2$
, which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as -
Chemistry
Classification of elements and periodicity in properties
Element of group 16 (except polonium) are called chalcogens because
Chemistry
p -Block Elements
Element having maximum electron affinity is
Chemistry
p -Block Elements
Element found in the sediments in the ocean floor is
Chemistry
General Principles and Processes of Isolation of Elements
Electronic configuration (outermost) of
$Mn^{2+}$
ion(At. No. of Mn = 25) in its ground state is
Chemistry
d -and f -Block Elements
Electropositive character for the elements of group
$13$
follows the order
Chemistry
p -Block Elements
Electrolytic reduction method is used in the extraction of
Chemistry
General Principles and Processes of Isolation of Elements
Electromagnetic separation is used in the concentration of
Chemistry
General Principles and Processes of Isolation of Elements
Electrical conductance through metals is called metallic or electronic conductance and is due to the movement of electrons. The electronic conductance depends on
Chemistry
Electrochemistry
Eka-aluminium and Eka-silicon are known as
Chemistry
Classification of elements and periodicity in properties
Effective atomic number of Fe in the complex
$K_4[Fe(CN)_6]$
is
Chemistry
coordination compounds
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