Question
Aqua regia, which can dissolve gold, is a freshly
prepared mixture of concentrated hydrochloric acid and concentrated ______.Solution
Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of 3:1. · It can dissolve gold, even though neither of these acids can do so alone. · Aqua regia is a highly corrosive, fuming liquid. · It is one of the few reagents that can dissolve gold and platinum.
Find the wrong number in the given number series.
125, 129, 120, 136, 121, 147
A-5, A, 35, 52, 78, 115
- Find the wrong number in the given number series.
23, 37, 66, 111, 172, 249 - Find the wrong number in the given number series.
12, 21, 5, 38, 2, 71 259, 372, 495, 618, 741, 864
9 20 63 255 1285 7716
...4, 9, 35, 159, 951, 6931
- Find the wrong number in the given number series.
300, 600, 200, 900, 112.5, 1125 15, 34, 13, 32, 11, 28
64, 32, 35, 48, 96