Aqua regia also known as royal water or king’s water which can dissolve noble metals gold and platinum is a mixture of :

(a) Hydrochloric acid	(b) Nitric acid
(c) Hydro bromic acid	(d) Sulphuric acid

A

(a), (b) and (d)

B

(a) and (b)

C

(a), (c) and (d)

D

(a), (b) and (c)