Since hydrogen ions cannot exist alone and exist only after combining with water molecules, they must always be shown as which among the following, represented as \(H_3O^+\)?
Hydronium ion
Since hydrogen ions cannot exist alone and combine with water molecules, they are represented as hydronium ions, \(H_3O^+\).
Oxide ion, hydrogen gas and hydroxide ion describe entirely different chemical species, not this specific combined ion form.
Hence, Hydronium ion 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