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Chemistry
List of top Chemistry Questions
What is the catalyst used for oxidation of $\ce{SO_2}$ to $\ce{SO_3}$ in lead chamber process for manufacture of sulphuric acid?
MHT CET - 2018
MHT CET
Chemistry
p -Block Elements
The number of unpaired electrons in $Ni$ (atomic number $= 28)$ are
WBJEE - 2018
WBJEE
Chemistry
d block elements
$Cl_2O_7 $
is the anhydride of
WBJEE - 2018
WBJEE
Chemistry
p -Block Elements
Which of the following is an example of thermosetting polymers?
AMUEEE - 2018
AMUEEE
Chemistry
Polymers
Which one of the following set of metals deposits an anode mud during the process of electrolytic refining of copper?
AMUEEE - 2018
AMUEEE
Chemistry
General Principles and Processes of Isolation of Elements
The most reactive to nucleophilic attack at the carbonyl group is
AMUEEE - 2018
AMUEEE
Chemistry
reaction mechanism
Identify the correct increasing order of crystal field stabilization energy value for the given complexes.
JKCET - 2018
JKCET
Chemistry
coordination compounds
How many geometrical isomers are possible with complexes of the type
$ [M(ab)_3] $
?
JKCET - 2018
JKCET
Chemistry
coordination compounds
The correct option(s) regarding the complex
${[Co(en)(NH3)3(H2O)]^{3+} (en = H2NCH2CH2NH2)}$
is (are)
JEE Advanced - 2018
JEE Advanced
Chemistry
coordination compounds
The correct option(s) to distinguish nitrate salts of
${Mn^{2+}}$
and
${Cu^{2+}}$
taken separately is (are)
JEE Advanced - 2018
JEE Advanced
Chemistry
d block elements
Amongst the following interhalogen compounds which one is used for the production of
$ UF_{6} $
during
$ ^{235}U $
enrichment process?
AMUEEE - 2018
AMUEEE
Chemistry
p -Block Elements
Which of the following is the correct configuration of the complex
$ [RhCl_6]^{3-} $
?
JKCET - 2018
JKCET
Chemistry
coordination compounds
What will be the products when benzaldehyde is treated with
$ NaOD $
in
$ D_2O $
?
JKCET - 2018
JKCET
Chemistry
Aldehydes, Ketones and Carboxylic Acids
What will be the correct decreasing order of acid strength of the hydroxybenzoic acids? (Symbols and notations carry their usual meanings)
JKCET - 2018
JKCET
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Structure anions of acids,
$ HNO_{3}, H_{3}PO_{4} $
and
$ H_{2}SO_{4} $
are, respectively
AMUEEE - 2018
AMUEEE
Chemistry
Chemical bonding and molecular structure
Products (X and Y) of the following reactions (I and II) are : I.
$ \underset{\text{(Cold and dil.)}}{{2NaOH}}+ Cl_{2} \to Nacl+X+H_{2}O $
II.
$ \underset{\text{(Hot and cone.)}}{{6NaOH}}+ 3Cl_{2} \to Nacl+Y+3H_{2}O $
AMUEEE - 2018
AMUEEE
Chemistry
p -Block Elements
The intermediate product
$ (X) $
formed in the following reaction is
$ B_{2}H_{6}+6NH_{3} \to 3X { ->[Heat] } 2B_{3}N_{3}H_{6}+12H_{2} $
AMUEEE - 2018
AMUEEE
Chemistry
p -Block Elements
The crystal field splitting energy
$ (CFSE) $
for
$ [CoCl_{6}]^{4-} $
is about
$ 18000 \, cm^{-1} $
What would be the
$ CFSE $
value of
$ [CoCl_{4}]^{2-} $
?
AMUEEE - 2018
AMUEEE
Chemistry
coordination compounds
Which of the following complexes is optically active?
AMUEEE - 2018
AMUEEE
Chemistry
coordination compounds
Which of the following radioactive element is used in the treatment of cancer?
AMUEEE - 2018
AMUEEE
Chemistry
d block elements
The best reducing agent among the following is
AMUEEE - 2018
AMUEEE
Chemistry
p -Block Elements
Which of the following metal ions is expected to be coloured?
AMUEEE - 2018
AMUEEE
Chemistry
d block elements
Which of the following is most soluble in water?
AMUEEE - 2018
AMUEEE
Chemistry
GROUP 1 ELEMENTS
A compound
$ C_{5}H_{10}O (A) $
forms a phenyl - hydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives
$ n $
-pentane on reduction. The compound
$ (A) $
is
AMUEEE - 2018
AMUEEE
Chemistry
Aldehydes, Ketones and Carboxylic Acids
An example of non-stoichiometric hydride is
AMUEEE - 2018
AMUEEE
Chemistry
Bohr’s Model for Hydrogen Atom
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