List of top Chemistry Questions

Which of the following is a buffer solution?
Which of the following is not correct for an ideal solution?
Which of the following element has highest ionization energy?
Which of the following is amphoteric oxide? $Mn_2O_7$, $CrO_3$, $Cr_2O_3$, $CrO$, $V_2O_5$, $V_2O_4$
Which of the following is the electronic configuration of $Cu^{2+}$ (Z=29)?
Which of the following is used in photography?
Which of the following molecule has regular geometry?
Which of the following phosphorus is mostreactive ?
Which of the following undergoes sublimation ?
Which is the weakest out of HF, HCl HBr and HI?
Which element out of He, Ar, Kr and Xe formsleast number of compounds ?
The volume of carbon dioxide gas evolved at S.T.P. by heating $7.3\, gm$ of $Mg \left( HCO _{3}\right)_{2}$ will be
The rotenone is
The oxidation number of oxygen atom in $O^{2-}_2$ ion is
The number of unpaired electron in Ni2+ is ?
The number of unpaired electrons in ferrous ion(Z = 26) is
The law of mass action was given by
The important ore of aluminium is
The incomplete combustion of $CH_4$ gives
The heat produced by a $100\, W$ heater in $2\, min$. is equal to
The element, with atomic number $118$, will be
Nessler?? reagent is used in the test of
Euchlorine is produced by heating a mixture of
Carbon dioxide is isostructural with which of the following ?
Atom bomb is based on the principle of