Which of the following is a ferrous alloy and magnetics Alum

Which of the following is a ferrous alloy and magnetics: Aluminum Brass Titanium Steel What are the four classification of materials? Identify the four (04) classifications: (If you select more than four options, you will get negative two marks) Metals and Alloys. Polymers Ceramics and Glasses Composites. Smart materials Bio materials. Electronic materials. Smart materials. Why metals are good conductors of electricity? Choose the correct option from below: Because they have large number of devocalized electrons Because they have high density Because they have a sea or cloud of protons Because they occupy the right side of periodic table A polymer is: A very large molecule containing hundreds to thousands of molecular units. Polymers are development bio materials Polymers are semiconductor materials 4 very large molecule containing hundreds to thousands of single crystals.

Solution

13 ans) Option d. Steel is a ferrous alloy and magnetic

14 ans) Option a,b,c,d. Materials are generally split into four main groups: Metals, Polymers, Ceramics & Composites.

15 ans) Option a. Metals are good conductors of electricity because they have large number of delocalized electrons.

16 ans) Option a. A polymer is a very large mlecule containing hundreds to thousands of molecular units.