Question

Assertion(A): The basicity of orthophosphours acid is two.
Reason (R): In orthophosphorous acids, two re-placeable hydrogen atoms are present.

• A. Both (A) and (R) are true and (R) is the correct
  explanation of (A)
• B. Both (A) and (R) are true and (R) is not the
  correct explanation of (A)
• C. (A) is true and (R) is false
• D. (A) is false but (R) is true
  3

Answer 1

The correct option is A Both (A) and (R) are true and (R) is the correct

explanation of (A)
Basicity = 2
Reason is false only one replaeeable hydrogen atom.