Question

Valency of dichromate in potassium dichromate

Answer 1

Explanation:

Dichromate ion is Cr2O7(2-) so its valency is 2 and oxidation state of Cr is +6 its important compound is K2Cr2O7

Answer 2

Potasium dichromate is a strong oxidiser

Explanation:

• Potassium dichromate is an oxidizing agent and corrosive agent

• It is red-orange coloured solids

• It is dipotasium salt of chromate.
• It is used to oxidize alcohols,used as allergens and sensitisers.
• It affects the respiratory tract causing shortness of breath.

• It gains electrons during redox reaction.

• Potassium dichromate K₂Cr₂O₇→2K⁺+ Cr₂O₇²⁻ Valency of chromate is -2

• Dichromate is Cr₂O₇ in Potassium dichromate is