A.Carbon
B.Charcoal
C.Crushed bone
D.Calcium carbonate
E.Calcium carbide
Related Mcqs:
- In copper alloy foundry which of the following is used to prevent the molten metal from being oxidized?
- Acetylene is manufactured by
- Carborundum powder is:
- CO2 is necessary for photosynthesis; the chemical used to remove this gas most effectively from entering a control apparatus is:
- Limestone is predominantly
- Dolomite:
- In pack-carburising carbon is supplied
- Which of the following minerals is maximum in the bone:
- The chemical name of bleaching powder is
- A minor portion of the phosphorus absorption capacity of soils originates from:
