Question

Nature of substance of 1) saliva before meal 2)saliva after meal 3)lemon juice 4)colourless aerated drink 5)carrot juice 6)coffee 7)tomato juice 8)tap water 9)1M NaOH 10)1M HCL

Answer 1

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----->saliva before meal is slightly basic.

------> saliva after meal is acidic.

------>lemon juice is always acidic.

------>colourless aerated drink is slightly acidic in nature.

------>carrot juice is also acidic in nature.

------->coffee is very acidic.

------>tomato juice is also acidic.

------>tap water is neutral.

------> 1m naoh is basic in nature.

------>1m hcl is very acidic in nature.

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Answer 2

Explanation:

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