New One Goal, Three Exams: Strategies for Mastering RBI, SEBI, and IFSCA Exams
Register

Question

Potassium metabisulhpite is used as a stable source of

A Sulphur dioxide Correct Answer Incorrect Answer
B Carbon dioxide Correct Answer Incorrect Answer
C Sodium benzoate Correct Answer Incorrect Answer
D Sulphate Correct Answer Incorrect Answer
E None of the above Correct Answer Incorrect Answer

Solution

Potassium metabisulphite is a common wine or must additive, in which it forms sulfur dioxide (SO2). It decomposes at 190 °C, yielding potassium sulfite and sulfur dioxide:

Practice Next
×
×