Some substances and their pH values are given
in the table. Analyse the data in the table and
answer the following questions:
(a) Which of the substances are basic in nature?
(b) Which of the substances are acidic in nature?
(c) Which of the substances are neutral?
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So here, solution of baking soda and sodium hydroxide solution solution have pH greater than 7,they are basic.
b) Those substances that have pH < 7 are acid.
So here, lemon juice and vinegar have pH less than 7,they are acidic
c) Those substances that have pH = 7 are neutral
Here water is neutral as it has pH equal to 7
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