Which of the following pairs of metals uis purified by van arkel method?

Options

A. Ga and In
B. Zr and Ti
C. Ag and Au
D. Ni and Fe

Answer

B

Explanation

`Zr and Ti` are purified by van Arkel method
` Zr (s) + 2I_2 (g) overset( 870 K) to Zr l_4 (g) `
` ZrI_4 (g) underset( "tugstan filement ") overset( 2075 K ) to Zr (s) + 2I_2 (g) `
` Ti (s) +2I_2 (s ) overset( 523 K) to Til _(4) (g)`
` Til _4 overset( 1700 K ) to ti (s) +2I_2 (g) `