Q. Which of the following is/are metalloids?
1.Boron
2.Silver
3.Gold
Choose the correct answer from below given codes:

[A] 1 only

[B] 1 and 2 only

[C] 2 and 3 only

[D] 1, 2 and 3

Answer: A
Notes:

Explanation: Some elements have intermediate properties between those of metals and non-metals, they are called metalloids; examples are boron, silicon, germanium etc.

Source: Science NCERT 9th Class