Out of the following reduction processes :
(i) `Fe_(2)O_(3) + 3C rarr 2Fe + 3CO`
(ii) `Cu_(2)O +C rarr 2Cu + CO`
(iii) `PbO + C rarr Pb + CO`
(iv) `ZnO + C rarr Zn + CO`
Correct process is//are :

Consider the following reduction processes : (I) Fe_2O_3 + C rarr Fe (II) Al_2O_3 + C rarr Al (III) Pbo + C rarr Pb (IV) Ca_3(PO_4)_2 + C + SiO_2 rarr P The correct processe(s) is/ are

Balance the following equations: Fe_2O_3+C rarr Fe+CO

In the following reaction, ZnO is respectively as a/an (i) ZnO+Na_(2)O rarr Na_(2)ZnO_(2) (ii) ZnO+CO_(2)rarr ZnCO_(3)

Balance the following chemical equations. ii) Fe_(2)O_(3(s))+C_((s))rarr Fe_((s))+CO_(2(g))

To make the following reduction process spontaneous, temperature should be: Zn O + C rarr Z n + CO

Consider the following reactions : (i) C_(2)O_(4)^(2-) rarr CO_(2) (ii) SO_(4)^(2-) rarr SO_(3)^(2-) (iii) MnO_(4)^(2-) rarr MnO_(4)^(-) (iv) Fe^(3+) rarr Fe^(2+) Choose the correct answer -

Consider the following reactions : (i) C_(2)O_(4)^(2-) rarr CO_(2) (ii) SO_(4)^(2-) rarr SO_(3)^(2-) (iii) MnO_(4)^(2-) rarr MnO_(4)^(-) (iv) Fe^(3+) rarr Fe^(2+) Choose the correct answer -

How many of the following reactions are roasting? i) 4FeS_2 + 11O_2 rarr 2Fe_2O_3 + 8SO_2 ii) 2PbS + 3O_2 rarr 2PbO + 2SO_2 iii) HgS + O_3 rarr Hg + SO_2 (iv) Al_2O_3.2H_2O rarr Al_2O_3 + 2H_2O (v) ZnCO_3 overset(Delta) rarr 4ZnO + CO_2 uarr