What is the common name of the compound $CaOCl_2$ ?
The common name of the compound $CaOCl_2$ is bleaching powder.
Write word equations and then balanced equations for the reaction taking place when –
$(a)$ dilute sulphuric acid reacts with aluminium powder.
$(b)$ dilute hydrochloric acid reacts with iron filings.
Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate) ?
Why should curd and sour substances not be kept in brass and copper vessels ?
Fresh milk has a $pH$ of $6$. How do you think the $pH$ will change as it turns into curd ? Explain your answer.
How is the concentration of hydronium ions $(H_3O^+)$ affected when a solution of an acid is diluted ?
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