What is the product obtained when ethene reacts with cold, dilute, aqueous solution of potassium permanganate?

Assertion: Decolourisation of KMnO_(4) solution is used as a test for unsaturation. Reason: Alkenes on reaction with cold, dilute aqueous solution of potasssium permanganate produce vicinal glycols.

The product obtained when chlorine gas reacts with cold and dilute aqueous NaOH are -

An acidified solution of potassium permanganate oxidizes

The products obtained when chlorine gas reacts with cold and dilute aqueous NaOH are :