A.Ammonium hydroxide
B.Potassium hydroxide
C.Phosphoric acid
D.Phenol formaldehyde
Related Mcqs:
- An acidic buffer solution can be prepared by mixing solution of:
- Heating of core is necessary while using which of the following core binder?
- Potassium carbonate is not prepared by the Solvy process because
- In furan process, furan resins are primarily used as
- For the soldering of galvanized iron the flux used is
- CO2 is necessary for photosynthesis; the chemical used to remove this gas most effectively from entering a control apparatus is:
- Poison for platinum catalyst is
- Of the following chemicals the liquid having the greatest cooling effect on an individual is
- Which of the following is used as protective admixture in moulding sand for magnesium castings?
- For soldering of brass and copper, the flux used is
