List of top Chemistry Questions

Which gas among the following contains maximum number of molecules at STP ?
(Molar masses in g mol$^{-1}$: CO$_2$ = 44, Ar = 39.9, CH$_4$ = 16, O$_2$ = 32)
Separation of Acetone and Benzene from their mixture is carried out by
When one mole of lactose is hydrolysed, the hydrolysate contains
Which of the following compounds is obtained when quaternary ammonium hydroxide is strongly heated ?
Which of the following oxyacid of sulphur contain both S=S and S=O bonds ?
Which of the following compounds on heating with potassium permanganate and dilute sulphuric acid forms adipic acid ?
What is the percentage of void space in bcc type of unit cell?
How many lone pair of electrons are present on chlorine atom in chlorous acid ?
What is the formula of lithium imide?
Which oxide formation according to Ellingham diagram shows a graph with sudden change in slope?
How many hydroxy groups are present in hydroxyquinol?
What is the number of carbon atoms in alkanes found in diesel?
Identify the ore of magnesium from following ?
Which of the following is a solid trimer of formaldehyde?
Identify addition polymer from following
Identify the correct statement from following
Identify product ‘C’ in following reaction
\[ \mathrm{C_2H_5OH \xrightarrow[\text{Pyridine}]{SOCl_2} A \xrightarrow{C_2H_5ONa} B \xrightarrow[\Delta,\ Pressure]{dil.\ H_2SO_4} C} \]
Which among the following orbitals form Delta ($\delta$) molecular orbitals?
What is the formal charge on hydrogen atom in water molecule?
Sodium salt of $\alpha$-halogen carboxylic acid when heated with sodium nitrite and followed by hydrolysis forms
What is the position of elements La (Z = 57) and Ce (Z = 58) respectively in the long form of periodic table?
I.U.P.A.C. name of the following compound is
Which among the following is a heaviest isotope of water?
What is the type of hybridisation and the geometry respectively found in $\mathrm{[CoF_6]^{3-}$?}
Which of the following ionic species has highest precipitating power?