Question

Which one of the following is brittle?
a) Sodium
b) Aluminium
c) Selenium
d) Magnesium​

Answer 1

Selenium. You could guess this because you know from general knowledge that aluminum is not brittle, and in the first few days of chemistry class they usually tell you that sodium is a soft silvery metal easily cut with a knife, so selenium is the only possible answer. Yes, selenium IS brittle.

please mark me brain mark list

Answer 2

Answer:

Explanation:

Selenium :

Selenium is used in the production of pigments for ceramics, paint, and plastics. Selenium has both a photovoltaic and a photoconductive action (it converts light to electricity) (electrical resistance decreases with increased illumination). As a result, it is useful in photocells, solar cells, and photocopiers.

Brittle:

Brittle means "hard but prone to breaking easily." Brittle means that when a material is stressed, it breaks with little elastic deformation and no significant plastic deformation. Brittle materials absorb less energy before fracture (even those of high strength).

Therefore, The correct option 'C' Selenium is the brittle.

#SPJ2