Cigarette or gas lighter is made up of
Misch metal
Alkali metal
Noble metal
None
The transition element that has lowest enthalpy of atomisation is
The colour of ${(N{H_4})_2}S{O_4}Fe{(S{O_4})_3}.24{H_2}O$ is
$Cu^+$ ion is not stable in aqueous solution, due to
Mercury is the only metal which is liquid at ${0\,^o}C$. This is due to its
Which of the following is wrongly matched