List of top Chemistry Questions

Which of the following have a pyramidal shape ?

Major product A is

Hydrocarbons

IUPAC name of Catechol is-
Which of the following statement is INCORRECT
Find out number of unpaired electrons in d-subshell for $[Co(H_2O)_6]^{ 3+}. $
The correct order of ionisation enthalpy for Li, Na, Cl, F is:
Consider the following statements:
Statement I: The number of emitted photoelectrons Increases with increase in frequency of incident light.
Statement II: Kinetic energy of emitted photoelectrons increases with increase in frequency of incident light
Which of the following is used as adsorbent in adsorption chromatography?
Which one of the following has the most negative (highest –ve) electron gain enthalpy?
What is the sum of number of ɑ and π bonds present in 2-oxo-hex-4-yne-oic acid ?
Arrange the following anions in the decreasing order of their stability.
Arrange the following anions in the decreasing order of their stability.
What is the maximum amount of acetanilide formed when acetic anhydride in excess is treated with 18 gm of aniline. (nearest integer)
Maximum number of orbitals possible when n = 4 and m = 0?
An element of d-block (Z) of 4th period has spin only magnetic moment of its $Z^{3+}$ form is 3.9 BM, then find minimum atomic number of element (Z).
The total number of chain isomers possible for a compound with molecular formula $C_7H_{16}$ are:
How many of the given statements are true for fuel cell? 
A. It is a type of Galvanic cell 
B. It is used for providing electrical power in space programmes. 
c. Hydrogen and oxygen are bubbled through porous carbon electrodes into concentrated NaOH solution 
D. It produces electricity with an efficiency of 40% 
E. It is pollution free cell
What is the correct order of strength of following ligands according to the spectrochemical series?
Find out the work done in the following process.
work done in the following process.
Wolff–Kishner reduction\(\xrightarrow{NH_2-NH_2/KOH}\;\; Product\)
Which of the following cation will give green colour in Borax bead test
Sum of the number π and nt bonds in the ethylene molecule is x. The value of x is
One litre solution of 0.2 M glucose is separated with its pure solvent with semi-permeable membrane, 0.1 moles of NaCl is added to the solution. The change in osmotic pressure of solution will be at 300 K _____ . (take R = 0.083)
Identify the change occuring in oxidation state of Mn in cell reaction of dry cell of clock during its use
In which of the following compounds Mn has the highest oxidation state?
Consider the following statements:
Statement I: Stability of +1 oxidation state increases down the group in group-13.
Statement II: Atomic radius of Ga is greater than that of Al.