Question

The solution used by goldsmith for cleaning by goldsmith for cleaning tarnished jewellery is a mixture of two acids X and Y
in the ratio 1:3, X and Y are:
(A) Conc. H2SO4 and Conc. HCI
(C) Conc. HNO3 and Conc. HCI
(B) Conc. H2SO4 and Conc. HNO3
(D) None of these​

Answer 1

Answer:

B

Explanation:

It is a highly corrosive liquid called aqua regia.

Answer 2

Answer: answer is c

Explanation: