List of top Chemistry Questions

The halogen that is most easily reduced is
On reduction of $KMnO_4$ by oxalic acid in acidic the oxidation number of Mn changes.What is the magnitude of this change ?
Which of the following is not a sex hormone ?
In polysaccharides, the linkage connecting monosaccharide is called
According to the postulates of Werner for coordination compounds
On heating sodium metal in a current of dry ammonia,the compound formed is
The boiling point of heavy water is
Benzoyl chloride is prepared from benzoic acid by :
Which is not hydrolysed?
Which of the following is true about $ClO _{2}$ ?
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 paramagnetic?
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
Gas equation PV = nRT is obeyed by
The relationship which describes the variation of vapour pressure with temperature is called
A fruity smell is obtained by the reaction of ethanol with
Carbon atoms in benzene molecule are inclined at an angle of.
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,