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Chemistry
List of top Chemistry Questions
Which of the following is an intensive property ?
Chemistry
Thermodynamics
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
Ammonia gas dissolves in water to form
$ NH_{4}OH$
. In this reaction water acts as
Chemistry
p -Block Elements
The structure of
$PF_{5}$
molecule is
Chemistry
Chemical bonding and molecular structure
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
During the evaporation of liquid
Chemistry
Thermodynamics
For the square planar complex
$[M(a)(b)(c)(d)]$
(where,
$M =$
central metal and
$a, b, c$
and
$d$
are monodentate ligands), the number of possible geometrical isomers are
Chemistry
coordination compounds
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
Which of the following statements is correct? Dielectric constant of
$ {{H}_{2}}{{O}_{2}} $
Chemistry
Hydrogen Bonding
The electronic configuration of a dipositive ion
$ {{M}^{2+}} $
is
$2, 8, 14$
and its mass number is
$56$
. The number of neutrons present is
Chemistry
Structure of atom
The heat of formation of
$ C{{O}_{2}} $
is
$ -95\text{ }kcal $
. The amount of carbon which on burning will evolve 1000 kcal is
Chemistry
Chemical bonding and molecular structure
Which statement best explains why A is more acidic than B?
Chemistry
Hydrocarbons
Choose the reagent to carry out the reaction.
$ C{{H}_{3}}C\equiv CC{{H}_{3}}\xrightarrow[{}]{{}}\underset{cis\text{ }form}{\mathop{C{{H}_{3}}CH=CHC{{H}_{3}}}}\, $
Chemistry
Hydrocarbons
Which of the following would not form upon electrolysis of aqueous solution of potassium propanoate?
Chemistry
Hydrocarbons
Among the following molecules or ions, which has the longest
$ C-N $
bond?
Chemistry
Chemical bonding and molecular structure
Which of the following compounds can exist in enantiomeric (i.e., D and L) forms?
Chemistry
Haloalkanes and Haloarenes
lodoform test is not answered by:
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Which of the following is the correct electronic configuration of
$Cr$
?
Chemistry
Classification of elements and periodicity in properties
Hydrogen peroxide is prepared in the laboratory by:
Chemistry
Hydrogen Bonding
A gas has a vapour density
$11.2$
. The volume occupied by 1 gm of gas at NTP is:
Chemistry
States of matter
The number of isomers for the compound with the molecular formula
$ {{C}_{2}}BrClFI $
is
Chemistry
Organic Chemistry - Some Basic Principles and Techniques
The most suitable reagent for the conversion of
$ RC{{H}_{2}}OH\xrightarrow[{}]{{}}RCHO $
is
Chemistry
Alcohols, Phenols and Ethers
The major product in the above reaction is
Chemistry
Alcohols, Phenols and Ethers
Aldol condensation would not occur in
Chemistry
Aldehydes, Ketones and Carboxylic Acids
Which of the following is not a colligative property?
Chemistry
Surface Chemistry
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