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.
Which of the following terms does not represent electrical power in a circuit ?
On which of the following statements, is the kinetic theory of matter base?Â
Which vitamin is produced in the skin when exposed to sunlight?
When hard water is evaporated completely, the white solid remains in the container. It may be due to the presence of
1. Carbonates of Ca and Mg
Which of the following is a compound?
A ______ is a passive two-terminal electrical component that implements electrical resistance as a circuit element.
Which among the following has specialized tissue for conduction of water?
- Thallophyta
- Bryophyta
- Pterid...
What is the SI unit of electric charge?
What is the chemical symbol for Gold?Â
The SI unit of angular momentum is equivalent to which of the following?
Relevant for Exams:
