A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?

NCERT Class X
Science - Science

Chapter_Metals and Non Metals

1

Answers

2015-06-05T09:56:34+05:30
The name of the solution is Aquarasia. It is made up of 1 part of conc.  HNO_{3} and 3 parts of conc. HCl. It is highly powerful and is also used to melt gold.
0