A solution turns red litmus blue, its $pH$ is likely to be
$1$
$4$
$10$
$5$
How is the concentration of hydronium ions $(H_3O^+)$ affected when a solution of an acid is diluted ?
Equal lengths of magnesium ribbons are taken in test tubes $A$ and $B$. Hydrochloric acid $(HCl)$ is added to test tube $A$, while acetic acid $(CH_3COOH)$ is added to test tube $B$. Amount and concentration taken for both the acids are same. In which test tube will the fizzing occur more vigorously and why ?
Why does dry $HCl$ gas not change the colour of the dry litmus paper ?
Why should curd and sour substances not be kept in brass and copper vessels ?
Why do acids not show acidic behaviour in the absence of water ?