Question

11. Assertion: pH of pure water is always 7.
Reason: Pure water contains equal concentration of hydronium ion and hydroxide ion.
I. both assertion and reason is correct and reason is correct explanation
ii. both a and r are true but r is not the correct explanation
iii. a is true r is false
iv. a is false r is true​

Answer 1

Answer:

option 1

because pure water contains proper concentration of both hydronium and hydroxide ion