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Chemistry
List of top Chemistry Questions
The molecule which has highest bond order is
KEAM
Chemistry
Molecular Orbital Theory
Oxygen molecule is paramagnetic in nature. What is the paramagnetic content in terms of magnetic moment in
$O^{-}_{2}$
?
Chemistry
Molecular Orbital Theory
The conditions for the combination of atomic orbitals to form molecular orbitals are stated below. Mark the incorrect condition mentioned here.
Chemistry
Molecular Orbital Theory
The electronic configuration of carbon is
$1s^2 2s^2 2p^2$
. There are
$12$
electrons in
$C_2$
. The correct electronic configuration of
$C_2$
molecule is
Chemistry
Molecular Orbital Theory
The increasing order of energies of various molecular orbitals of
$N_2$
is given below: $\sigma 1s < \sigma^* 1s
Chemistry
Molecular Orbital Theory
Which contain at least one e- in
$\sigma 2p$
bonding MO
Chemistry
Molecular Orbital Theory
IUPAC name of
$CH_2=CH-CN$
is
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
IUPAC name of the following compound is
$(CH_2 = CH)_2CH-CH = CH_2$
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
IUPAC name of 3-isopropyl-o-xylene is
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
$ C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH $
and
$ {{H}_{3}}CC{{H}_{2}}OC{{H}_{3}} $
are:
KEAM
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Number of stereoisomers of lactic add is
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
$0.92 \,g$
of an organic compound was analysed by combustion method. The mass of the
$U$
-tube increased by
$1.08 \,g$
. What is the percentage of hydrogen in the compound?
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Consider the following carbocations : I.
$Cl_3 \overset{+}C$
II.
$Cl_{2} \overset{+} {C}H$
III.
$Cl \overset{+} {C}H_{2}$
IV.
$ \overset{+} {C}H_{3}$
The stability sequence follows the order
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
$1$
-Butene and cyclobutane show
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
59 g of an amide obtained from a carboxylic acid, RCOOH, upon heating with alkali liberated 17 g of ammonia. The acid is
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A compound with molecular formula
$C_4H_4O$
has all the four carbon atoms and the oxygen atom inthe ring. It also has two double bonds. The compound is
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A gas is found to have the formula (CO)
$^n$
. If its vapour density is 56, the value of n will be
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A mixture of acetone (b.p. 56
$^\circ$
) and methanol (b.p. 65
$^\circ$
) can be separated by
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A mixture of benzoic acid and naphthalene can be separated by crystallization from
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
A mixture of two immiscible liquids may be easily separated by using a
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
An example of alicyclic compound is
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
An organic compound contains
$69\%$
carbon and
$4.8\%$
hydrogen, the remainder being oxygen. What will be the masses of carbon dioxide and water produced when
$0.20 \,g$
of this substance is subjected to complete combustion.
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Aniline is insoluble in water and processes low vapour pressure. It can be purified by
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Aniline is usually purified by
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
Arrange the following alkyl bromides in decreasing order of rates of
$S_N2$
displacement reaction.
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
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