The correct statement is :

  • 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.

 

Answers (1)
  • aniline is froth stabilizer  (cresols also) --(it is fact)
  • zincite is a oxide ore \left ( ZnO \right )
  • zone refining process is used for the refining of titanium
  • sodium cynide is used in the metallurgy of the silver


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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