The correct statement is :
aniline is a froth stabilizer.
zincite is a carbonate ore.
sodium cyanide cannot be used in the metallurgy of silver.
zone refining process is used for the refining of titanium.
Option 1)
aniline is a froth stabilizer.
Option 2)
zincite is a carbonate ore.
Option 3)
sodium cyanide cannot be used in the metallurgy of silver.
Option 4)
zone refining process is used for the refining of titanium.
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