Question

If the mass of 100cm³ of iron is 785 g.then the dencity of iron is__________

A) 0.0785 gcm⁻³
B) 0.785 gcm⁻³
C) 78.5 gcm⁻³
D) 7.85 gcm⁻³

Answer 1

785g/100cm-3 = 785/100 gcm^-3
= 7.85 gcm-3
OPTION D