Question

Which of the following statements is incorrect?

options:

a)

Some elements are easily transported through the atmosphere and some others are more easily transported by streams.

b)

According to the classification of metal cations, Cu2+

should be considered as a B-type cation.

c)

Metalloids, such as Se, Te, and As, possess chemical properties between metallic and non-metallic elements.

d)

Under anaerobic conditions, some elements such as Se, Al, and Hg can be transformed into volatile methylated species.

Answer 1

a) Correct. Gases are easily transported through the atmosphere but solid elements are transported through the stream

b) Correct. B type cations are heavy metal cations.

c)Correct

d) Incorrect