Statement 1: Boron does not show univalent nature but unipositive nature of thallium is quite stable.
Statement 2: Inert pair effect predominates in Thallium.
Both statements 1 and 2 are correct
Statement 1 is correct and statement 2 is incorrect
Statement 1 is incorrect and statement 2 is correct
Both statements 1 and 2 are incorrect
Both statements are true and the statement 2 is the explanation of the statement 1.