Q: Which one of the following is the correct order of relative reactivities of metals Ca, Al, Hg and Au?
(a)Ca > Al > Hg > Au
(b)Au > Hg > Al > Ca
(c)Al > Ca > Hg > Au
(d)Ca > Al > Au > Hg
Correct Answer: (a)
The correct answer is (a) 'Ca > Al > Hg > Au'. This question from the General Studies domain tests knowledge of Miscellaneous.