The density of water is maximum at …………… °C and is …………… kg/m³

1. 0, 1
2. 0, 1000
3. 4, 1
4. 4, 1000

Relative density of a substance is expressed by comparing the density of that substance with the density of:

1. air
2. mercury
3. water
4. iron

The correct relation between density and relative density is :

1. R.D. = $\dfrac{\text{Density of substance in g cm}^{-3}}{1.0{\text{ g cm}^{-3}}}$

2. R.D. = $\dfrac{\text{Density of substance in g m}^{-3}}{1.0{\text{ g/cm}^{3}}}$

3. R.D. = $\dfrac{\text{Density of substance in kg cm}^{-3}}{1.0{\text{ g cm}^{3}}}$

4. None of these

The relative density of silver is :

1. 11.7
2. 9.5
3. 12.8
4. 10.5