A solution reacts with crushed egg-shells to give a gas that turns lime water milky. The solution contains
$NaCl$
$LiCl$
$KCl$
$HCl$
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 ?
Write an equation to show the reaction between Plaster of Paris and water.
Which one of the following types of medicines is used for treating indigestion ?
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas ?
While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid ?