Question

why does a moist blue litmus paper turn red when i is brought near the mouth of test tube in which ferrous sulphate crystals are being heated

Answer 1

hey mate

here is your answer

it is because solution in test tube is acid. as we know acid turns blue litmus into red

i hope it helps youu✌

plz mark it as brainliest..

Answer 2

because on heating of ferrous sulphate it breaks down in ferric oxide suphur dioxide and sulphur trioxide which is acidic in nature