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Standard XII

Chemistry

Crystal Lattice and Unit Cell

The unit cell...

Question

The unit cell with the given structure and a = b = c, represents ____________ crystal system.

cubic

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orthorhombic

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tetragonal

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trigonal

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Solution

The correct option is A cubic
If $a = b = c$ and $α = β = γ = 90^{o}$ , the given structure will be a cubic crystal system.

Image I : $a = b = c$
all angles $= 90^{o}$ (Isometric ) cubic

Image II : $a \neq b \neq c$
all angles $= 90^{o}$
Orthorhombic

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The unit cell with the given structure and a = b = c, represents ____________ crystal system.

The correct option is A cubicIf a=b=c and α=β=γ=90o, the given structure will be a cubic crystal system.Image I : a=b=call angles =90o (Isometric ) cubicImage II : a≠b≠call angles =90oOrthorhombic

The correct option is A cubic
If $a = b = c$ and $α = β = γ = 90^{o}$ , the given structure will be a cubic crystal system.

Image I : $a = b = c$
all angles $= 90^{o}$ (Isometric ) cubic

Image II : $a \neq b \neq c$
all angles $= 90^{o}$
Orthorhombic