Main component of bone ash is ________?

Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about ________ micro mho/cm3?

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about ________ °C?

Which of the following fuel gases contains maximum amount of carbon monoxide?

Normality of a solution does not change with the increase in the ________?

Boiling point of a solution according to Duhring’s rule is a linear function of the ________ of water?