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Chemistry
List of top Chemistry Questions
Increasing order of acidic strength among phenol, cresol and p-nitrophenol is
Chemistry
Alcohols, Phenols and Ethers
In zinc blende structure,
Chemistry
The solid state
In Wurtz reaction the reagent used is
Chemistry
Hydrocarbons
In which pair most efficient packing is present?
Chemistry
The solid state
In which of the following the inert pair effect is most prominent?
Chemistry
p -Block Elements
In which pair of compounds, the oxidation state of nitrogen is - 1 ?
Chemistry
p -Block Elements
In which of the following the corrosion of iron will be most rapid
Chemistry
Electrochemistry
In which of the following reaction
$H_2O_2$
is a reducing agent ?
Chemistry
Redox reactions
In which of the following pairs, both molecules possess dipole moment?
Chemistry
Chemical bonding and molecular structure
In which of the following, oxygen has +2 oxidation number ?
Chemistry
p -Block Elements
In which of the following, oxidation number of chlorine is +5 ?
Chemistry
Redox reactions
In which of the following molecules octet rule is not followed?
Chemistry
Chemical bonding and molecular structure
In which of the following group of periodic table mp/bp increase down the group ?
Chemistry
Classification of elements and periodicity in properties
In which of the following entropy decreases?
Chemistry
Thermodynamics
In which of the following compounds the oxidation number of carbon is not zero?
Chemistry
Redox reactions
In which of the following acids oxidation state of sulphur is different from that of the others ?
Chemistry
Redox reactions
In vulcanisation of rubber
Chemistry
Polymers
In which allotropic form of sulphur, puckered
$S_8$
rings are not present ?
Chemistry
p -Block Elements
In the structure of diborane
Chemistry
p -Block Elements
In the sphalerite (ZnS) structure,
$S^{2-}$
ions form a face-centred cubic lattice. Then from the Comers,
$Zn^{2+}$
ions are present on the body diagonals at
Chemistry
The solid state
In the reaction,
$Cu(s)+ 2Ag^+ (aq) \rightarrow Cu^{2+}(aq) + 2Ag(s)$
, the reduction half cell reaction is
Chemistry
Electrochemistry
In the reaction of excess of
$ {LiAlH_4}$
with crotonaldehyde
Chemistry
Aldehydes, Ketones and Carboxylic Acids
In the reaction,
$ {H_2O_2 + Na_2 CO_3 -> Na_2O_2 + CO_2 + H_2O}$
the substance undergoing oxidation is
Chemistry
Redox reactions
In the reaction,
$ {3Cl_2 + 6 NaOH -> NaClO_3 + 5 NaCl + 3 H_2O }$
the element which loses as well as gains electrons is
Chemistry
Redox reactions
In the reaction between
$ {SO_2}$
and
$ {O_3}$
, the equivalent weight of ozone is
Chemistry
Redox reactions
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