Solve all the questions
Answer 3:
(a) (i) A base which is also an alkali is sodium hydroxide (NaOH).
(ii) When carbon dioxide dissolved in water it forms carbonic acid, which makes pH of water slightly less than 7. But, as lime water is basic, pH is more than 7 for it.
(iii) Base which is not alkali is CuO.
(iv) We add acid to water and not water to acid. This is because, when we add acid, water tend to splash out which is harmless, but if we add water to acid, acid will splash out and cause burns on skin.
For further queries please ask in separate thread.
(a) (i) A base which is also an alkali is sodium hydroxide (NaOH).
(ii) When carbon dioxide dissolved in water it forms carbonic acid, which makes pH of water slightly less than 7. But, as lime water is basic, pH is more than 7 for it.
(iii) Base which is not alkali is CuO.
(iv) We add acid to water and not water to acid. This is because, when we add acid, water tend to splash out which is harmless, but if we add water to acid, acid will splash out and cause burns on skin.
For further queries please ask in separate thread.