Question
Which of the following acid proves to be useful for the
purification of gold and silver?ÂSolution
Nitric acid is used for purification of various precious metals, including gold, silver, and platinum. In metallurgy, it is used in combination with alcohol for etching designs on metals like brass, copper, bronze, etc.
PESSIMIST
Choose the correct synonym of the word highlighted in each sentence from the alternatives given below it.
There was a look ecstasy on his face. <...
Select the most appropriate ANTONYM of the given word.
 Timid
Select the most appropriate ANTONYM of the given word.
Liability
"An illness that spreads rapidly and affects a large number of people."
Find the word with the appropriate similar meaning of the word in Italic from the options given:
The audacious explorer ventured into unknown t...
One who is unable to pay one’s debt Â
Impervious
Select the most appropriate synonym of the given word.
BarrenÂ
Impeccable
