6539Chemical EngineeringMedium
Platinum and silver are corroded by________?
ASulphuric acid (10%)
BCaustic soda solution
CNone of these
DPhosphoric acid
Correct answer
C. None of these
Explanation
The correct answer is None of these.
Correct answer
C. None of these
Explanation
The correct answer is None of these.
Carbon is present in the form of ________ in grey cast iron?
Which of the following is resistant to the action of both heat & chemicals?
With increase in temperature, the thermal conductivity of non-metallic amorphous solids________?
Bernoulli’s equation for steady, frictionless, continuous flow states that the ________ at all sections is same?
Starting friction is low in case of the ________ lubrication?
Most of the plastics are safe to be used upto a maximum temperature of ________ °C?