List of top Chemistry Questions

The boiling point of heavy water is

Benzoyl chloride is prepared from benzoic acid by :

Which is not hydrolysed?

A gas $z$ is bubbled through a solution containing $x ^{-}$ and $y ^{-}$. If the reduction potential are in the order $x>y>z$, then

The formula of microcosmic salt and the product obtained by heating it is

A molecule contains atoms $x$ and $y$ so that $x$ occurs at the corners of the cube while $y$ at the face centre. The formula of the molecule can be

Which of the following is true about $ClO _{2}$ ?

Which of the following has a tendency for covalent compound formation?

Oxidation state of sulphur in $S _{8}, H _{2} S$ and $S _{2} F _{2}$ is

$CuSO _{4}$ dissolves in $NH _{3}$ due to the formation of

Which of the following is paramagnetic?

Gas equation PV = nRT is obeyed by

Carbon atoms in benzene molecule are inclined at an angle of.

A fruity smell is obtained by the reaction of ethanol with

Which of the following has the highest nucleophilicity?

Which of the following, has the most acidic hydrogen?

The order of reactivities of the following alkyl halides for a $S_N$2 reaction is-

The compressibility of a gas is less than unity at STP. Therefore,

Propyne and propene can be distinguished by

For the equilibrium,${ MgCO_3(s) <=>[\triangle] MgO(s)+CO_2 (g)} $ which of the following expressions is correct ?

Benzoyl chloride is prepared from benzoic acid by

At 100$^\circ$C and 1 atm. if the density of liquid water is 1.0 g $cm^{-3}$ and that of water vapour is 0.0006 g $cm^{-3}$, then the volume occupied by water molecules in 1 litre of steam at that temperature

Amongst the following, identify the species with an atom in + 6 oxidation state

Amongst $H_2O , H_2S, H_2Se$ and $H_2Te,$ the 1one with the highest boiling point is

The number of $P - O - P$ bonds in cyclic metaphosphoric acid is