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Chemistry
List of top Chemistry Questions
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
What type of crystal defect is indicated in the diagram below ?
$ { Na^{+} Cl^{-} Na^{+} Cl^{-} Na^{+} Cl^{-}}$
$ {Cl^{-} \Box \, Cl^{-} Na^{+} \Box Na^{+}}$
$ {Na^{+} Cl^{-} \Box Cl^{-} Na^{+} Cl^{-}}$
$ {Cl^{-} Na^{+} Cl^{-} Na^{+} \Box Na^{+}}$
Chemistry
The solid state
What products are expected from the disproportionation reaction of hypochlorous acid?
Chemistry
Redox reactions
What is wrong about the following pair of compounds
$[Cr(H_2O)6]CI_3$
and
$[Cr(H_2O)_5CI]CI_2.H_2O$
Chemistry
coordination compounds
What kind of isomerism exists between
$[Cr(H_{2}O)_{6}]Cl_{3}$
(violet) and
$[Cr(H_{2}O )_{5}Cl]Cl_{2}\cdot H_{2}O$
(greyish-green)?
Chemistry
coordination compounds
What is the valency of Manganese in
$ {K2MnO4}$
?
Chemistry
Redox reactions
What is the valency of carbon in
$CO^{2-}_3$
?
Chemistry
Chemical bonding and molecular structure
What is the problem faced while using alitame as artificial sweetener?
Chemistry
Chemistry in Everyday Life
What is the oxidation number of Fe in
$Fe(CO)_5$
?
Chemistry
coordination compounds
What is the percentage of acetic acid present in vinegar?
Chemistry
Aldehydes, Ketones and Carboxylic Acids
What is the order of stability of
$N_2$
and its ions?
Chemistry
Chemical bonding and molecular structure
What is the name of the complex
$[Al(OH)_2(H_2O)_4]SO_4$
?
Chemistry
coordination compounds
What is the net charge on ferrous ion?
Chemistry
Redox reactions
What is the name and symbol of the element with atomic number
$112$
?
Chemistry
Classification of elements and periodicity in properties
What is the most likely configuration of the cobalt d-electrons for the species,
$[CoCl_6]^{3-}$
and
$[Co(NO_2)_6]^{3-}$
?
Chemistry
coordination compounds
What is the IUPAC name of
$Na_2[Fe(CN)_5NO]$
?
Chemistry
coordination compounds
What is the heat of solution of sodium chloride from following data? Hydration energy of
$Na^+ = - 389.4\, kJ\, mol^{-1}$
Hydration energy of
$Cl^- = - 382.3\, kJ\, mol^{-1}$
Lattice energy of
$NaCl = - 776 \,kJ \,mol^{-1}$
Chemistry
GROUP 1 ELEMENTS
What is the formal charge on carbon atom in the following two structure:
Chemistry
Chemical bonding and molecular structure
What is the electrode potential of
$Fe^{3+}/ Fe$
electrode in which concentration of
$Fe^{3+}$
ions is 0.1 M. Given
$E^\circ Fe^{3+}/Fe = + 0.771 V$
Chemistry
Electrochemistry
What is the effect of Frenkel defect on the density of ionic solids?
Chemistry
The solid state
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