Question

Q.15 Which of the following flow charts correctly describes a
homogeneous material?
a) Unknown - density - 3 layers
O b) Unknown
b) Unknown - filtration - two substances
c) Unknown - magnet - two substances
O
d) Unknown - boiling - one temperature​

Answer 1

Question:

Q.15 Which of the following flow charts correctly describes a  homogeneous material?

a) Unknown - density - 3 layers

b) Unknown - filtration - two substances

c) Unknown - magnet - two substances

d) Unknown - boiling - one temperature​

Answer:

d) Unknown - boiling - one temperature​ is the correct answer.

Explanation:

Homogeneous material is that material which has a uniform composition and is overall having same physical and chemical properties.

a) Unknown - density - 3 layers

This unknown material constitutes of 3 layers which have different densities  which means different properties that's why this is not homogeneous material.

b) Unknown - filtration - two substances

This unknown material after getting filtrated constitutes of two substances which means different properties that's why this is also not a homogeneous material.

c) Unknown - magnet - two substances

This unknown material is magnetic and constitutes of two substances which means different properties that's why this is also not a homogeneous material.

d) Unknown - boiling - one temperature​

This unknown material after boiling shows one temperature which signifies it consist of only one material and no other material is mixed. If it would have been mixed it would have varied temperature but, it's same temperature.

This is a homogeneous material.

Answer 2

Answer:

D) unknown-boiling-one temp.