Question

Materials having qualities of both metals and non- metals are
a) Alloys
b) Metalloids
c) Noble metals
d) none of these
​

Answer 1

Answer:

The sentences below explain what happens when a container filled with a liquid is heated. But

the order of sentences are all jumbled up. Which is the correct sequence of events?

A: Number of collisions between the molecules and the walls of the container

increases.

B

Intermolecular separation between molecules increases.

C Molecules begin to vibrate vigorously.

D:

Intermolecular force of attraction decreases.

E:

Density of liquid decreases

Explanation:

none of tgese

Answer 2

$\underline{ \boxed{ \rm{b) \: Metalloids}}} \: \checkmark$

Metalloids have the qualities of both metals and non metals.

Knowledge cell :

Properties of metals :

• Metals are good conductors of heat & electricity.
• Metals are malleable.
• Metals are sonorous.
• Metals are ductile.
• Metals are hard.
• Metals have high density.
• Metals have high tensile strength.

Properties of non - metals :

• Non - metals are poor conductors of heat & electricity.
• Non metals are non - malleable.
• Non metals are not ductile.
• Non metals are non - sonorous.
• Non metals are soft.
• Non metals have low density.
• Non metals have low tensile strength.

Tensile strength : Means to bear strain.