Identify the wrong statements and correct them.
i) Sodium benzoate is used in food preservative.
ii) Nitric acid is not used as fertilizer in agriculture.
iii) Sulphuric acid is called the king of chemicals.
iv) The PH of acid is greater than 7.
v) Acetic acid is used in aerated drinks.
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i) Sodium benzoate is used in food preservatives, salad dressings, pickles, etc. Therefore, the first statement is correct.
ii) Nitric acid is a strong acid and is not used as fertlizer in agriculture. The second statement is wrong.
iii) Silphuric acid is called the king of chemicals as it has many industrial and non-indistrial uses.
iv) Many compounds are formed using this strong acid that is corrosive in nature. The pH of an acid is always less than 7.
Therefore the iv statement is wrong.
Acetic acid is used in aerated drinks. Therefore, statement v. is correct.
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