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Q.

Which of the following substances are corrosive?


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a

NaCl

b

CH3COOH

c

Na2CO3

d

NaHCO3       

answer is B.

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Detailed Solution

CH3COOH is a corrosive substance.   It is highly corrosive in concentrated form because it corrodes metals, some coatings, and some forms of plastic and rubber. Due to its acidic nature it has a pungent smell and sour taste. It dissolves in water and evolves heat and hence produces blisters all over skin if comes in contact.
 
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