TNPSC Group 1 · 2015 Preliminary Examination
32.
Match the following :
(a) Na and K - (i) Obtained by electrolysis of fused salt
(b) Cu and Ag - (ii) Occur only in native state
(c) Au and Pt - (iii) Occur both native and combined state
(d) Na and Ca - (iv) Reducing agent in metallurgy
(e) Al and Mg - (v) Occur only in combined state.
Answer:
A.
(a) - (v) (b) - (iii) (c) - (ii) (d) - (i) (e) - (iv)