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Chemistry
List of top Chemistry Questions
Which of the following is not present in a nucleotide?
Delhi UMET/DPMT - 2008
Delhi UMET/DPMT
Chemistry
Biomolecules
The IUPAC name of
$ [Ni(NH_3 )_4][NiCl_4]$
is
JEE Advanced - 2008
JEE Advanced
Chemistry
Isomerism in Coordination Compounds
Among the following surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions is
JEE Advanced - 2008
JEE Advanced
Chemistry
Surface Chemistry
A gas described by van der Waals' equation
JEE Advanced - 2008
JEE Advanced
Chemistry
States of matter
Among the following, the coloured compound is
JEE Advanced - 2008
JEE Advanced
Chemistry
coordination compounds
Native silver metal forms a water soluble complex with a dilute aqueous solution of
$NaCN$
in the presence of
JEE Advanced - 2008
JEE Advanced
Chemistry
d block elements
Hyperconjugation involves overlap of the following orbitals
JEE Advanced - 2008
JEE Advanced
Chemistry
Organic Chemistry
The correct statement(s) about the compound given below is/are
JEE Advanced - 2008
JEE Advanced
Chemistry
Haloalkanes and Haloarenes
According to
$VSEPR$
theory the repulsion between different pair (lone or bond) of electrons obey the order
JKCET - 2008
JKCET
Chemistry
Chemical bonding and molecular structure
From the molecular orbital theory, one can show that the bond order in
$F_{2}$
molecule as
JKCET - 2008
JKCET
Chemistry
Chemical bonding and molecular structure
Differentiating electron in inner transition elements enters the ......... orbital.
JKCET - 2008
JKCET
Chemistry
d block elements
The nature of the bond in diamond is
JKCET - 2008
JKCET
Chemistry
Chemical bonding and molecular structure
What is (are) number
$(s)$
of unpaired electrons in the square planar
$[Pt(CN)_4]^{2-}$
ion?
JKCET - 2008
JKCET
Chemistry
coordination compounds
Which of the following can give a Grignard reagent when reacted with magnesium in dry ether?
Rajasthan PMT - 2008
Rajasthan PMT
Chemistry
Haloalkanes and Haloarenes
When copper reacts with hot and conc.
$ H_2SO_4, $
gives
JIPMER - 2008
JIPMER
Chemistry
d block elements
The chemical name of anisole is
KCET - 2008
KCET
Chemistry
Ethers
An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250 mL. The volume of
$ \text{0}\text{.1}\,\text{N}\,\text{NaOH} $
required to completely neutralize 10 mL of this solution is
JCECE - 2008
JCECE
Chemistry
Stoichiometry and Stoichiometric Calculations
If
$ X $
is the total number of collisions which a gasmolecule register with others per unit time under particular conditions, then the collision frequency of the gas containing N molecules per unit volume is
MU OET - 2008
MU OET
Chemistry
Collision Theory of Chemical Reactions
The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state one, would be (Rydberg constant
$ =1.097\times {{10}^{7}}\,{{m}^{-1}} $
)
JCECE - 2008
JCECE
Chemistry
Bohr’s Model for Hydrogen Atom
Alizarin belongs to the class of
BITSAT - 2007
BITSAT
Chemistry
Chemistry in Everyday Life
Trans esterification is the process of
NEET (UG) - 2007
NEET (UG)
Chemistry
Aldehydes, Ketones and Carboxylic Acids
The number of moles of
$KMnO_4$
that will be needed to react with one mole of sulphite ion in acidic solution is
NEET (UG) - 2007
NEET (UG)
Chemistry
Mole concept and Molar Masses
The two polynucleotide chain in $DNA$ are :
NEET (UG) - 2007
NEET (UG)
Chemistry
Polymers
$RNA$
and
$DNA$
are chiral molecules, their chirality is due to
NEET (UG) - 2007
NEET (UG)
Chemistry
Biomolecules
If there is no rotation of plane polarised light by a compound in a specific solvent, though to be chiral, it may mean that
NEET (UG) - 2007
NEET (UG)
Chemistry
Haloalkanes and Haloarenes
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