Question

Metalloids are present in…..
A.s-block
B.p-block
C.d-block
D.f-block

Answer 1

Hint : A metalloid is an element that has properties that are intermediate between those of metals and nonmetals. Metalloids can also be called semimetals.Some of the metalloids are Boron, silicon, germanium, arsenic, antimony, tellurium, polonium and astatine.

Complete step by step solution :
So these are the elements found along the step-like line between metals and non-metals of the periodic table. The metalloids have properties of both metal and non-metal.
They are present after the s-block and the d-block in the periodic table.
Hence, these metalloids are in p-block. The correct option is B.
Additional Information: A metalloid is a type of a chemical element which has properties in between or that which are a mixture of metals and non-metals. There is a lack of specificity of definition of metalloids, and then also the term remains in use in the literature of chemistry. The six very common metalloids are boron, silicon, germanium, arsenic, antimony and tellurium. Five elements are less in frequency so called, carbon, aluminium, selenium, polonium and astatine. Some periodic tables also include a partition line between metals and nonmetals and also the metalloids may be found very close to this particular line. Typical metalloids have a metallic appearance, but they are also so brittle and not so good conductors of electricity. Chemically, their behaviour is mostly like non-metals. They can also form alloys with different metals.
Note : We must know that the metalloids are usually very brittle to have any structural use in the environment. Metalloids along with their compounds are used in optoelectronics, pyrotechnics, catalysts, semiconductors, electronics, alloys, biological agents, flame retardants, glasses, and optical storage.