List of top Chemistry Questions

Which of the following is involved in Sandmeyer's reaction?
Which of the following molecule has highest bond energy?
Which of the following statement is true ?
Which one of the following is an acidic salt?
Which of the following compound is a tribasic acid?
The bonding present between the carbon atoms of graphite:
The most stable carbonium ion is:
The density of air is $0.001293 g/cc.$ Its vapour density is :
The highest dipole moment is of:
The process of heating and suddenly cooling of steel is known as :
Philosopher's wool on treatment with cobalt nitrate produce :
The reaction: $ {C2H5OH + SOCl2 ->[{\text{Pyridine}}] C2H5Cl + SO2 + HCl}$ is known as
The property utilized in the manufacture of lead shots is
Which of the following is weakest bond?
An alcoholic drinks substance $ pH=4.7 $ then $ ^{-}OH $ ion concentration of this solution is:
Which of the following has lowest first ionization energy?
Which of following is not Lewis base?
Which quantum number is not related with Schrodinger equation?
An element have atomic weight $40$ and its electronic configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6}$. Then its atomic number and number of neutrons will be:
Which compound decolorizes iodine solution?
The magnetic quantum number of valence electron of sodium $ (Na) $ is:
The relationship between ionization and change in concentration of any weak electrolyte is represented as:
The oxidation number of sulphur in $Na_2S_4O_6$ is
The highest oxidation state shown by Mn is:
$ SN^1$ reaction is feasible in :