4. Name the acid which is found in vinegar.
5. What do you mean by acid?
6.
What is called concentrated acid? Give
example.
7. What is called dilute acid? Give example.
8. What is called base? Give example.
9. What is called alkali? Give example.
10. Name one each of concentrated base and
dilute base.
11. What changed will be seen when blue litmus
solution is added to the citrus juice?
12. How you will prove that the orange juice is
either acidic or basic with the help of litmus?
Answers
Answer:
vinegar-acetic acid
Explanation:
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Answer:
4)vinegar has acetic acid.
5)acids are compounds that contain hydrogen ions they have a sour taste and change colour of litmus paper red they irritate skin on contact
6)A concentrated acid is an acid which is in either pure form or has a high concentration.
e.g. Laboratory type sulfuric acid
7). A dilute acid is that in which the concentration of the water mixed in the acid is higher than the concentration of the acid itself. eg sulphuric acid mixed with water
8)bases are compounds that contain hydroxide ions and are bitter in taste they change colour of litmus paper blue. they are soapy on touch
9)it is a basic ionic salt if an alkali metal it can be defined as a base dissolved in water
10)dilute ammonium hydroxide,dilute sodium hydroxide,
11)blue litmus paper will turn red as citrus juice is an acid
12)dip a piece of blue litmus paper in orange juice if it turns red than it is an acid.if it remains blue it is a base
hope this helps