Assertion : Graphite is an example of a tetra | vedclass

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(D) Graphite crystallizes in a hexagonal crystal system,not a tetragonal one. For a hexagonal system,the parameters are $a = b 
eq c$,$\alpha = \beta

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If both the Assertion and Reason are incorrect.

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(D) Graphite crystallizes in a hexagonal crystal system,not a tetragonal one. For a hexagonal system,the parameters are $a = b 
eq c$,$\alpha = \beta = 90^o$,and $\gamma = 120^o$.For a tetragonal system,the parameters are $a = b 
eq c$ and $\alpha = \beta = \gamma = 90^o$.Since the Assertion incorrectly identifies the crystal system of graphite and the Reason provides incorrect parameters for a tetragonal system,both the Assertion and the Reason are incorrect.

Assertion : Graphite is an example of a tetragonal crystal system.
Reason : For a tetragonal system,$a = b \neq c$,$\alpha = \beta = 90^o$,$\gamma = 120^o$.

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Assertion : Graphite is an example of a tetragonal crystal system.Reason : For a tetragonal system,$a = b \neq c$,$\alpha = \beta = 90^o$,$\gamma = 120^o$.