The relative density of lead is 11.3. Its density is ....... kg m⁻³

The correct option is 11300 kg m⁻³.

Step-by-step explanation:

Relative density (also known as specific gravity) of a substance is defined as the ratio of the density of the substance to the density of water at 4^°C.

The relation is given by the formula:

$\text{Relative Density}=\frac{\text{Density of substance}}{\text{Density of water}}$

Rearranging the formula to solve for the density of the substance:

$\text{Density of substance}=\text{Relative Density}\times \text{Density of water}$

The density of water in SI units at 4^°C is a standard reference value:

$\text{Density of water}=1000{\text{kg m}}^{-3}$

We are given:
Relative density of lead = 11.3

Substitute the relative density of lead and the density of water into the equation:

$\text{Density of lead}=11.3\times 1000{\text{kg m}}^{-3}$

$\text{Density of lead}=11300{\text{kg m}}^{-3}$

Therefore, the density of lead is 11300 kg m⁻³.