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Chemistry
List of top Chemistry Questions
$NF_3$
is a weaker ligand than
$N(CH_3)_3$
.
$NF_3$
ionizes to give
$F^-$
ions in aqueous solution.
AIIMS - 2003
AIIMS
Chemistry
coordination compounds
Oxidation number
$ Fe $
in
$ {{K}_{3}}[Fe{{(CN)}_{6}}] $
is:
Punjab PMET - 2003
Punjab PMET
Chemistry
Redox reactions
The shape of an orbital is determined by :
Punjab PMET - 2003
Punjab PMET
Chemistry
Structure of atom
The enthalpies of all elements in their standard states are:
Punjab PMET - 2003
Punjab PMET
Chemistry
Thermodynamics
The following compound cannot exhibit:
$ C{{H}_{3}}CH=CH-CH(OH)\cdot COOH $
Punjab PMET - 2003
Punjab PMET
Chemistry
coordination compounds
Which of the following turns potassium dichromate paper green?
Punjab PMET - 2003
Punjab PMET
Chemistry
d -and f -Block Elements
Which of the following order of ionisation energy is correct?
Punjab PMET - 2003
Punjab PMET
Chemistry
Classification of elements and periodicity in properties
Among the following the weakest base is
AIIMS - 2003
AIIMS
Chemistry
Amines
$MnO _{4}^{2-}(1 mole )$
in neutral aqueous medium is disproportionated to
AIIMS - 2003
AIIMS
Chemistry
Redox reactions
The ion which is not tetrahedral in shape is
AIIMS - 2003
AIIMS
Chemistry
coordination compounds
Which of the following are arranged in the decreasing order of dipole moment?
AIIMS - 2003
AIIMS
Chemistry
Chemical bonding and molecular structure
The true statement for the acids of phosphorus,
$H_3PO_2$
,
$H_3PO_3$
and
$H_3PO_4$
is
AIIMS - 2003
AIIMS
Chemistry
p -Block Elements
The paramagnetic species is
AIIMS - 2003
AIIMS
Chemistry
p -Block Elements
Glycosides are hydrolysed in acidic conditions. Glycosides are acetals.
AIIMS - 2003
AIIMS
Chemistry
Biomolecules
The complex used as an anticancer agent is
AIIMS - 2003
AIIMS
Chemistry
coordination compounds
Among the following the strongest acid is
AIIMS - 2003
AIIMS
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Which one of the following is an amphoteric oxide?
AIEEE - 2003
AIEEE
Chemistry
Classification of elements and periodicity in properties
Which of the following pair of compounds are enantiomers ?
AIPMT - 2003
AIPMT
Chemistry
Haloalkanes and Haloarenes
Which one of the following is a free- radical substitution reaction
AIPMT - 2003
AIPMT
Chemistry
Hydrocarbons
IUPAC name of
AIIMS - 2003
AIIMS
Chemistry
Organic Chemistry
The correct order of stability of carbocations, is:
Punjab PMET - 2003
Punjab PMET
Chemistry
Organic Chemistry
Acrilan is a hard, horny and a high melting material. Which of the following represents its structure ?
AIPMT - 2003
AIPMT
Chemistry
Polymers
Hesss law states that
KCET - 2003
KCET
Chemistry
Thermodynamics
A gas can expand from 100 mL to 250 mL undera constant pressure of 2 atm. The work done by the gas is
OJEE - 2003
OJEE
Chemistry
Thermodynamics
Ethyl isocyanide on hydrolysis in acidic medium generates
AIEEE - 2003
AIEEE
Chemistry
Amines
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