Correct answer
D. Cobalt, chromium & tungsten
Explanation
The correct answer is Cobalt, chromium & tungsten.
Which of the following is a poisonous fuel gas?
Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is________?
Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity) ________?
Antibiotic________?
Hydrophilic group of a soap or detergent solution is________?
Effectiveness factor of a catalyst pellet is a measure of the ________ resistance?