Multiple choice

Which of the following does metaphosphoric acid produce?

  1. Glassy solid salt

  2. Canary yellow precipitate

  3. Normal salt

  4. Acidic salt

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct because on heating orthophosphoric acid at 2500C, it loses a water molecule and forms polyphosphoric acid. It is further heated at 5000C to lose another molecule of water and form metaphosphoric acid. it is a glassy solid salt.