Answer the following questions given below:
Kamali is helping her mother in the kitchen. She prepares fresh lemonade using lemon juice and water. She also notices a bowl of curd and a container of tamarind water kept for cooking. Since the lemonade tastes very sour, she adds a little baking soda and observes bubbling and fizzing.
Later, she accidentally spills some vinegar on the countertop and cleans it with soapy water. Curious about the nature of these substances, she tests them using turmeric indicator available in the kitchen.
1. While cleaning the countertop, Keerthi spilled some vinegar. Which acid is present in vinegar?
2. Keerthi dipped turmeric paper into baking soda solution. What colour change would she observe, and what is the nature of the solution?
3. Which of the following properties would help to identify whether the given solutions are acidic or basic?