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Q.

Which of the following is correct?

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a

HCl is acid 

b

NaOH is acid

c

KOH is acid

d

H2SO4 is base

answer is A.

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Detailed Solution

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HCl and H2SO4 are acids because they give H+ ions on dissolving in the aqueous solution. It increases the concentration of H+ ions in the solution.

KOH and NaOH are bases because they give OH- ions on dissolving in the aqueous solution. It increases the concentration of OH- ions in the solution.

Hence, ''HCl is acid'' is a correct statement.

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