Most transition metals
$I :$ form sets of compounds which display different oxidation states of the metal
$II :$ form coloured ions in solution
$III :$ burn vigorously in oxygen
$IV :$ act as catalyst
$I, II, III$ are correct
$II, III, IV$ are correct
$I, II, IV$ are correct
all are correct
An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is $....\,B.M.$ (Nearest integer)
Which of the following is expected to form colourless complex
“$925$ fine silver” means an alloy of :
A substance which is not paramagnetic is
The $d-$ block element which is a liquid at room temperature, having high specific heat, less reactivity than hydrogen and its chloride $(MX_2)$ is volatile on heating is