>
Chemistry
List of top Chemistry Questions
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
What is the correct order of decreasing bond angle?
Chemistry
Chemical bonding and molecular structure
What is the decreasing order of strength of the bases?
$OH^{-},NH_2^-,H-C \equiv C^- \, and \, CH_3-CH_2^- $
Chemistry
reaction mechanism
What is the basic formula for starch?
Chemistry
Biomolecules
What is the co-ordination number of
$Cl^-$
in
$NaCl$
crystal ?
Chemistry
The solid state
What is the coordination number of sodium in
$Na_2O$
?
Chemistry
The solid state
What is not applicable to
$TeCl_4$
?
Chemistry
Hybridisation
Prev
1
...
899
900
901
902
903
...
970
Next