Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals)?

Caprolactam (a raw material for nylon-6 manufacture) is produced from ________?

Which of the following chemical reactions will be favoured by low pressure?

For the same flow rate of a fluid, the pressure drop is the least for ________?

In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffected by pressure changes?

The distance between metacentre and ________ is called metacentric height?