Which of the following statements is correct | vedclass

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(D) The $pH$ scale measures the acidity or alkalinity of a solution.For acids,as the concentration of $H^+$ ions increases,the $pH$ value decreases. T

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$(ii)$ and $(iv)$

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(D) The $pH$ scale measures the acidity or alkalinity of a solution.For acids,as the concentration of $H^+$ ions increases,the $pH$ value decreases. Therefore,a lower $pH$ indicates a stronger acid,and a higher $pH$ indicates a weaker acid. Thus,statement $(ii)$ is correct.For bases,as the concentration of $OH^-$ ions increases,the $pH$ value increases. Therefore,a higher $pH$ indicates a stronger base,and a lower $pH$ indicates a weaker base. Thus,statement $(iv)$ is correct.Combining these,statements $(ii)$ and $(iv)$ are correct.

Which of the following statements is correct about an aqueous solution of an acid and of a base?
$(i)$ Higher the $pH$,stronger the acid
$(ii)$ Higher the $pH$,weaker the acid
$(iii)$ Lower the $pH$,stronger the base
$(iv)$ Lower the $pH$,weaker the base

Similar Questions

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What is the nature of an aqueous solution of washing soda?

Tap water conducts electricity,whereas distilled water does not. Why?

$(a)$ Write the chemical name and chemical formula of washing soda.
$(b)$ How is it obtained from sodium chloride? Give equations of the reactions.
$(c)$ Why is it called a basic salt? Give any one of its uses.

$(a)$ State in tabular form the name of the acid and base from which the following salts are formed. Also,mention the nature of the salt,whether it is acidic or basic?
$(i)$ Sodium acetate.
$(ii)$ Ammonium sulphate.

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Which of the following statements is correct about an aqueous solution of an acid and of a base?$(i)$ Higher the $pH$,stronger the acid$(ii)$ Higher the $pH$,weaker the acid$(iii)$ Lower the $pH$,stronger the base$(iv)$ Lower the $pH$,weaker the base