$Cu(CN)_4^{2 - }$ is colourless as it absorbs light in

  • A

    Visible region

  • B

    Ultraviolet region

  • C

    Infrared region

  • D

    All above are wrong

Similar Questions

Which forms coloured salts

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

For the ions $Zn ^{2+}, \,Ni ^{2+}$ and $Cr ^{3+}$ which among the following statements is correct ?

(Atomic number of $Zn =30,\,Ni =28$ and $Cr =24$ )

  • [AIIMS 2019]

Paris green is

Bessemer converter is used in the manufacture of