A.White stain
B.Greenish stain
C.Blue stain
D.Grey stain
E.Black stain
Related Mcqs:
- Dilute nitric acid applied to a clean fracture of white cast iron will produce
- In wet process (strong sulphuric acid leaching) for the manufacture of orthophosphoric acid the dilute orthophoric acid (40%) is obtained from travelling pan vacuum filter. The dilute orthophosphoric acid (50%) is concentrated economically 75% orthophosphoric acid by using
- In halide torch test if there is leakage of refrigerant, the colour of flame with change to
- Which of the following form of iron is produced as a result of annealing of white cast iron?
- Wrought iron is
- Wrought iron
- If there is no atmosphere, the color of the sky will be __________?
- Blisters in wrought iron cause
- Concentration of the nitric acid from 60 to 95% can be done by
- Fuming nitric acid is
