Cast iron contains ________ percent carbon?

Which of the following factors control the deactivation of a porous catalyst pellet?

Which of the following fertilisers contains the least percentage of nitrogen?

The diffusion co-efficient in m2/s. of acetic acid in benzene (liquid in liquid) is________?

A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be________?

Fibrous fracture is normally encountered in the ________ materials?