An acidified solution of potassium dichromate is turned green when

Question

An acidified solution of potassium dichromate is turned green when (A) hydrogen gas is bubbled through it (B) air is passed through it (C) zinc pieces are added to it (D) zinc chloride is added to it

Tardigrade Admin · Accepted Answer

Zinc pieces react with H 2 SO 4 to give hydrogen in the nascent form. Nascent hydrogen readily turns K2 C r2 O7 solution green.

Q. An acidified solution of potassium dichromate is turned green when

hydrogen gas is bubbled through it

air is passed through it

zinc pieces are added to it

zinc chloride is added to it

Zinc pieces react with $H_{2} S O_{4}$ to give hydrogen in the nascent form. Nascent hydrogen readily turns $K_{2} C r_{2} O_{7}$ solution green.

Q. An acidified solution of potassium dichromate is turned green when

hydrogen gas is bubbled through it

air is passed through it

zinc pieces are added to it

zinc chloride is added to it

Zinc pieces react with H2​SO4​ to give hydrogen in the nascent form. Nascent hydrogen readily turns K2​Cr2​O7​ solution green.

Zinc pieces react with $H_{2} S O_{4}$ to give hydrogen in the nascent form. Nascent hydrogen readily turns $K_{2} C r_{2} O_{7}$ solution green.