Question

On the Mohs scale, graphite (a principal constituent of pencil "lead") has a hardness of -; 1) 1.5; 2) 2.2-2.5; 3) 3.2-3.5; 4) 5.1

Answer 1

1) 1.5

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On the Mohs scale, graphite (a principal constituent of pencil "lead") has a hardness of  1.5

Answer 2

Heya....

====== Answer =======

On the Mohs scale , graphite ( a pencil constituent of pencil " lead " has a hardness of ---

1.5 , So... option 1 is correct...

Thank you