Which of the following is a general method of preparing a...
Which of the following is a general method of preparing acids?
Direct combination of constituent elements
Double decomposition involving a salt solution
Reaction between an anhydride and water
Reaction between a base and an amphoteric oxide
Dissolution of hydroxides followed by neutralization
Correct answer is C
There are several methods of preparation of acids. These include the following:
1. By the reaction between an acidic oxide of a non-metal (acid anhydride) and water.
SO2(g) + H2O(l) → H2SO3(aq) Trioxosulphate(IV)
P4010(s) + 2H2O(l) → 4HPO3(aq) Trioxophosphate(V)
The element with electron configuration 1s\(^2\) 2s\(^2\) 2p\(^6\) 3s\(^2\) 3p\(^1\) belongs to...
What volume of 1.5M solution of KOH would contain 0.045 moles ...
The first definition of an element was made by ...
The coloured nature of transition metal ions are associated with their partially filled ...
The pOH of a solution of 0.25 mol dm-3 of hydrochloric acid is...