Solvay process is used for the manufacture of________?

For the reaction, A + B → 2B + C,________?

Nylon-66 is so named because the________?

Hardening of steel is not possible unless it is heated ________ critical point?

Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to________?

________ heat exchanger is used for chilling oil to be dewaxed?