Question

In this question, there are four items, three of which are alike by some means while the other one is out of the class.

Identify that element among the following four.

(1) Mercury (2) Bromine
(3) Chlorine (4) Carbon

Answer 1

1. Mercury is placed in d-block whereas all others are placed in p-block.

2. Mercury easily forms alloys, called amalgams, with other metals such as gold, silver, and tin.

3. The ease with which it amalgamates with gold made it useful in recovering gold from its ores. Mercury amalgams were also used in dental fillings.

4. So, mercury is different than other elements and the correct answer is mercury.