Question

Short Answer Type Questions
Colours in acidic, basic and net
21. What is an indicator ? Name three indicators.
22. Name the source from which litmus solution is obtained. What is the use of this solu
23. Why does a yellow curry stain on a white shirt turn red when it is washed with soap
24. Which of the following are acidic and which are basic?
Lime water, Vinegar, Toothpaste, Stomach juices, lemon juice,
Baking soda solution, Milk of magnesia, Ammonia solution
25. What is a salt? Name any two salts,
26. What are the three types of salts ? Give one example of each type of salt,
27. Choose the acidic, basic and neutral salts from the following:
Sodium chloride, Ammonium chloride, Sodium carbonate, Sodium sulphate,
Ammonium sulphate,
28. Explain why, if we touch the test-tube immediately after carrying out the neutralis
acid and a base in it, it is found to be somewhat hot.​

Answer 1

Answer:

21.INDICATOR IS A SPECIAL KIND OF SUBSTANCE USED TO IDENTIFY A SUBSTANCE IS ACIDIC OR BASIC IN NATURE.

THE 3 INDICATORS ARE:

CHINA ROSE INDICATOR , TURMERIC INDICATOR AND LITMUS PAPER.

22.IT IS FROM LICHENS . TURNS RED LITMUS BLUE AND BLUE LITMUS RED.

23. Curry contains turmeric powder and soap is basic in nature. ... Hence, when soap (which is basic in nature) is scrubbed on the stain, the stain turns red. When the cloth is washed with plenty of water, the soap is removed and the yellow colour of the stain reappears

24 . ACIDS : VINEGAR ,LEMON JUICE . STOMACH JUICE

     BASE : LIME WATER ,TOOOTHPASTE ,BAKING SODA ,MILK F MAGNESIA

Explanation:

PLZZZ MARK ME THE BRAINLIEST PLZZ