Which row gives the correct description of one property of barium and one property of barium oxide?
- Aa few gas bubbles form on the metal surface / $\text{pH} = 8$
- Ba few gas bubbles form on the metal surface / $\text{pH} = 13$
- Crapid effervescence is seen / $\text{pH} = 8$
- Drapid effervescence is seen / $\text{pH} = 13$