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  9. Q28

Telangana Police SI 2018 · Question 28 of 96

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) Hydrobromic acid (d) Sulphuric acid

chemistry

  1. A(a), (b) and (d)
  2. B(a) and (b)Correct
  3. C(a), (c) and (d)
  4. D(a), (b) and (c)

Answer: B. (a) and (b)

Explanation

[2018 PWT Q103] Aqua regia is a 3:1 mixture of concentrated hydrochloric acid and nitric acid. Verified against the official TSLPRB preliminary key (Booklet D).

Source: TS SI PWT 2018 official paper (Booklet D); answer cross-verified with the official TSLPRB preliminary key

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