Select the correct statementA. In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.B. Decomposition of an oxide is an endothermic changeC. To make `DeltaG^(@)` negative , temperature should be high enough so that `T Delta S^(@) gt DeltaH^(@)`.D. All are correct statements.

Select the correct statementA. In the decomposition of an oxide into o

1.	Select the correct statementA. In the decomposition of an oxide into oxygen and gaseous metal, entropy increases.B. Decomposition of an oxide is an endothermic changeC. To make `DeltaG^(@)` negative , temperature should be high enough so that `T Delta S^(@) gt DeltaH^(@)`.D. All are correct statements.
Answer» Correct Answer - D

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Consider the following statements and arrange in the order of true/false as given in the codes. `S_(1)`:Cuprite, Limonite and Zincite are oxide ares `S_(2)` Magnesite and carnallite are magnesium ores `S_(3)`: Chalcocyte and azurite are ores of copper `S_(4)` Feldspar an mica minerals contain aluminium.A. TTTTB. FTFFC. FFTTD. TTFT
Which of the following statements is correct about the role of substances addedd in the froth floatation process?A. Collectors enhance the non-wettability of the mineral particlesB. Collectors enhance the wettaability of gangue particlesC. By using depressents in the process two sulphides ores can be sepreatedD. Froth stablisers decrease wettability of gangue.
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