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Q49) To prevent corrosion, iron pipes carrying drinking water are covered with zinc. The process involved is [ CPMT 1986]




SOLUTION


Answer: (c)


Q50) Which element belong to d-block? [ CPMT 1984]




SOLUTION


Answer: (c)


Q51) Cyanide process is used in the metallurgy of ... [ CPMT 1990]



SOLUTION

Complex of Ag is formed with NaCN then reacted with Zn to separate Ag
Answer:(b)



Q52) Sulphide ore of zinc is concentrated by .. [ DPMT 1982]



SOLUTION


Answer: (a)


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