Which one of the following statements is inco | vedclass

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(B) Cuprite $(Cu_2O)$ is an oxide,while argentite $(Ag_2S)$ is a sulphide. Therefore,the statement that both are oxides is incorrect.Calamine $(ZnCO_3

Vedclass · Accepted Answer

Argentite and cuprite are oxides.

Vedclass · Answer

(B) Cuprite $(Cu_2O)$ is an oxide,while argentite $(Ag_2S)$ is a sulphide. Therefore,the statement that both are oxides is incorrect.Calamine $(ZnCO_3)$ and siderite $(FeCO_3)$ are indeed carbonates.Zinc blende $(ZnS)$ and pyrites $(FeS_2)$ are indeed sulphides.Malachite $(CuCO_3 \cdot Cu(OH)_2)$ and azurite $(Cu_3(CO_3)_2(OH)_2)$ are indeed ores of copper.

List-$I$	List-$II$
$(a)$ Siderite	$(i)$ $Cu$
$(b)$ Calamine	$(ii)$ $Ca$
$(c)$ Malachite	$(iii)$ $Fe$
$(d)$ Cryolite	$(iv)$ $Al$
	$(v)$ $Zn$

Which one of the following statements is incorrect?

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Match List-$I$ with List-$II$.

List-$I$ List-$II$

$(a)$ Siderite $(i)$ $Cu$

$(b)$ Calamine $(ii)$ $Ca$

$(c)$ Malachite $(iii)$ $Fe$

$(d)$ Cryolite $(iv)$ $Al$

$(v)$ $Zn$

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