Question

multiple choice. choose the one alternative that best completes the statement or answers the question.
13)

1. a solid form of matter in which there is long range repeating order is called?

a) fixed
b) rigid
c) amorphous
d) crystalline
e) none of the above

1. which among the following statements is false?

a) a liquid has a definite volume; but it has no definite shape.
b) a solid has a definite shape and a definite volume.
c) both solids and liquids are incompressible while gases are compressible.
d) a gas has neither definite volume nor definite shape.
e) none of the above

Explanation:

Question 14

Crystalline solids have a long - range repeating order in their atomic or molecular arrangement. Fixed and rigid are general properties of solids, not specific to the long - range order. Amorphous solids have short - range order. So the solid form of matter with long - range repeating order is called crystalline.

• Option A: A liquid has a definite volume (it takes the volume of the container up to a point) and no definite shape (it takes the shape of the container), this is correct.
• Option B: A solid has a definite shape and a definite volume, this is correct.
• Option C: Solids and liquids are incompressible (their volume changes very little under pressure) while gases are compressible (their volume changes significantly under pressure), this is correct.
• Option D: A gas has neither definite volume nor definite shape (it expands to fill the entire container), this is correct.

Since all the statements A - D are correct, the false statement is none of the above.

Answer:

D. crystalline

Question 15