Consider the following statements and arrange in the order of true/false as given in the codes. `S_1`:In the aluminothermite process, aluminium acts a
Consider the following statements and arrange in the order of true/false as given in the codes.
`S_1`:In the aluminothermite process, aluminium acts as a reducing agent.
`S_2`:The process of extraction of gold involves the formation of `[Au(CN)_4] and [Zn(CN)_4]^(2-)`
`S_3`:In the extractive metallurgy of zinc, partial fusion of ZnO with coke is called sintering and reduction of ore to the molten metal is called smelling.
A. T F F
B. TTT
C. TTF
D. TFT
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Correct Answer - B
`S_1:Cr_2O_3+2Altooverset(+3)(Al_2)O_3+2Cr`
`S_2:2Au+4CN^(-)+2H_2O+1/2O_2to2[Au(CN)_2]^(-)to2OH^(-),2[Au(CN)_2]^(-)+Zn=[Zn(CN)_4]^(2-)+2Au`
`S_3`:True statement
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