List of top Chemistry Questions

\(K_2Cr_2O_7\) paper acidified with dil. \(H_2SO_4\) turns green when exposed to :

According to MO theory, the molecule which contain only π-Bonds between the atoms is

The rate constants of a reaction at 200 K and 300 K are 0.02 s-1 and 0.04 s-1. Ea for this reaction will be:

In which if the following changes there is no change in hybridization of the central atom?

Homoleptic complex from the following complexes is:
0.5 gm of an organic compound with 60%. Carbon produce ______ gm of \(CO_{2}\) upon complete combustion
General formula of alkynes
"Pairing of electrons in orbitals starts only when the available degenerate orbitals are singly filled" is stated by
Which one of the following pair belongs to same homologous series?
What is the molar ratio of hydrogen and oxygen in the formation of water ?
The gas liberated when metallic sodium reacts with ethanol
The flux used in extraction of iron from haematite is
Identify the correct ascending order of energies of forbitals.
How many molecules of hydrogen are present in 10 g of hydrogen ?
Which of the following quantum numbers describes the spatial orientation of orbitals?
Which of the following represents the correct order of electronegativity among halogens?
Functional group present in carboxylic acid is
The molecule in which the central atom has one lone pair of electrons in its valence shell is
Which of the following molecules has a triple bond?
The gas formed when Zn is treated with dil. HCl is
The compound formed in the following reaction is
\(\text{CH}_3-\text{CH}_2-\text{OH} \xrightarrow[\text{Conc. H}_2\text{SO}_4]{170^\circ\text{C}} \text{?}\)
Plaster of Paris is___
The bond angle in CH4 molecule is
Which of the following is not an ionic compound?
What is the prefix used for functional group aldehyde ?