Read the situation give below and select answer to the questions.
 
Situation 1:  Rajiv has severe stomach pain due to the frequent intake of spicy food. His mother gave him a pill, and after a while, he felt relief from the pain.
 
1. Which of the folowing base is used as an antacid?  

Situation 2: A farmer observed that his crops are not growing well. So he grabbed some soil from his land and decided to test the nature of the soil. He found that the pH of the soil is 5.7.
 
2. What is the nature of the soil with the pH value below 6?