List of top Chemistry Questions

The weight of a metal of equivalent weight $12$, which will give $0.475\, g$ of its chloride, is
Heterolytic fission of an organic covalent bond gives only
Which of the following has unchanged valency ?
The compound containing coordinate bond is
Which of the following will not undergo aldol condensation?
Which of the following elements will have the highest electron affinity ?
When excess of water is added to $BiCl_3$ solution
When chloroform is exposed to air and sunlight, it gives
Which one of the following elements can have both positive and negative oxidation state ?
The turgidity of a polymer solution measures
Which of the following phenomena will occur when two atoms of the elements having same spin of electron approach for bonding ?
Which of the following is a polyamide ?
The long form of Periodic Table is based on
The hybrid states of carbon in diamond, graphite and acetylene are respectively
Noble gases do not react with other elements because
$MgCl_2.6H_2O$ when heated gives
Physical adsorption of molecules on surface requires activation energy. Because the bonds of the adsorbed molecules are broken.
According to Dalton?? atom theory, the smallest particle in which matter can exist, is called
Which of the following is known as fusion mixture?
Which of the following compound does not react with metallic sodium ?
When $(NH_4)_2Cr_2O_7 $ is heated, the gas evolved is
The number of electrons in $\left[{ }_{19} K ^{40}\right]^{-1}$ is
The number of electrons and neutrons of an element is $18$ and $20$ respectively. Its mass number is
Which of the following glasses is the most heat resistant?
Which of the following is an alum?