Question

Q# which of the following have no cleavage plane?
A- NaCl crystal
B- Ice
C- Copper crystal
D- graphite​

Answer 1

Answer:

graphite or copper crystals it might be not sure

Answer 2

The Correct answer is Option (C) copper crystal.

Cleavage is a property of crystalline solids to split along definite crystallographic structures.

Explanation:

• The Cleavage plane will intersect at 60⁰C,90⁰Cand 120⁰C
• Copper crystal has a jagged, hackly fracture.
• It is the physical property that is used in the identification of minerals.
• A Cleavage plane is the fracture of a crystal or metal along the plane.
• If a mineral has the shape of a cube then there will be three cleavage planes.
• Copper Single Crystal 29Cu
• Copper is a reddish metal, malleable and ductile
• Copper is ideal for electrical wiring, probably its most important commercial use.
• Answer is Option (C) copper crystal.