The dissolution of which of the following in water makes the solution acidic due to the formation of sulphurous acid?
Sulphur dioxide
Sulphur dioxide dissolves in water to form sulphurous acid, making the resulting solution acidic.
Sulphonic acid, sulphur trioxide and sulphur hexafluoride form different acids or do not readily dissolve to form sulphurous acid specifically.
Hence, Sulphur dioxide is the correct answer.
Which of the following substances is considered neutral according to the pH scale?
Which of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
If formula of sodium salt of an anion X is \(Na_2X\) , then the formula of its aluminium salt would be
Which of the following set contains same number of molecules?
A. 1 gram O 2, 2 grams SO 2
B. 1 gram CO 2, 1 gram N 2O
C. 1 gram O 2, 1 gram O 3
The volume of CO 2liberated at STP when 10 gm of 90% pure limestone strongly heated is