The table above shows the formulae of some ions. In which of these compounds is the formula not correct?

The pH of a 0.001 mol dm\(^{-3}\) of  H\(_2\)SO\(_4\) is 

[Log\(_{10}\)2 = 0.3]

Strong acids can be distinguished from weak acids by any of the following methods, EXCEPT

The chemical formula for potassiumhexacyanoferrate(II) is

For chemical reaction to be spontaneous, ∆G must be