>
Chemistry
List of top Chemistry Questions
Which one of the following is not present in RNA?
Chemistry
Biomolecules
What bond order does
$Li_{2}$
have?
Chemistry
Chemical bonding and molecular structure
In the compounds
$KMnO_{4}$
and
$K_{2}Cr_{2}O_{7},$
the highest oxidation state is of the element:
Chemistry
Redox reactions
The substance used as pigment in paint is:
Chemistry
GROUP 1 ELEMENTS
A certain mass of gas occupies a volume of
$2$
litre at STP keeping the pressure constant. At what temperature would the gas occupy a volume of
$4$
litre?
Chemistry
States of matter
Among
$ HF,CH_{4},CH_{3}OH$
and
$N_{2}O_{4},$
inter molecular hydrogen bond is expected:
Chemistry
Chemical bonding and molecular structure
$ C_6H_5 - CH = CHCHO {->[X]} C_6H_5CH = CHCH_2OH$
In the above sequence
$X$
can be:
Chemistry
Alcohols, Phenols and Ethers
What is the oxidation state of
$P$
in
$ Ba(H_2PO_2)_2 $
?
Chemistry
Redox reactions
Maximum number of hydrogen bonding in
$ {{H}_{2}}O $
is:
Chemistry
Hydrogen Bonding
Which of the following acts as an oxidising as well as reducing agent?
Chemistry
The solid state
Maximum entropy will be in which of the following?
Chemistry
Thermodynamics
What is obtained when chlorine is passed in boiling toluene and product is hydrolysed?
Chemistry
Alcohols, Phenols and Ethers
Sodium phenoxide reacts with
$ C{{O}_{2}} $
at
$400 \,K$
and
$4-7$
atm pressure to give
Chemistry
Alcohols, Phenols and Ethers
Saturated solution of
$ KN{{O}_{3}} $
is used to make salt bridge because
Chemistry
Electrochemistry
On passing
$3A$
of electricity for
$50$
min
$1.8\, g$
metal deposits. The equivalent mass of metal is
Chemistry
Electrochemistry
Which of the following is used widely in the manufacture of lead storage battery?
Chemistry
Electrochemistry
The general formula
$ {{C}_{n}}{{H}_{2n}}{{O}_{2}} $
could be for open chain
Chemistry
Organic Chemistry
Decomposition of hydrogen peroxide can be prevented by adding
Chemistry
Hydrogen Bonding
Which of the following is an intensive property ?
Chemistry
Thermodynamics
Ammonia gas dissolves in water to form
$ NH_{4}OH$
. In this reaction water acts as
Chemistry
p -Block Elements
The enthalpies of combustion of carbon and carbon monoxide are
$ -393.5$
and
$ -283\,kJ\, mol^{-1}$
respectively. The enthalpy of formation of carbon monoxide per mole is
Chemistry
Thermodynamics
The structure of
$PF_{5}$
molecule is
Chemistry
Chemical bonding and molecular structure
During the evaporation of liquid
Chemistry
Thermodynamics
A solid is made of two elements
$X$
and
$Z$
. The atoms
$Z$
are in
$CCP$
arrangement while the atoms
$X$
occupy all the tetrahedral sites. What is the formula of the compound?
Chemistry
The solid state
The discovery of which of the following group of elements gave death blow to the Newland's law of octaves?
Chemistry
Classification of elements and periodicity in properties
Prev
1
...
1480
1481
1482
1483
1484
...
1570
Next