Which of the following is magnetite ?

which of the following is not ?

Consider the following reaction Which of the following is true?

The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Which of the following is obtained as a slag in the extraction of iron from haematite ore ?

Which of the following is/are not the products in the following reaction?

Which of the following is a positive overlap which leads to bonding ? .

which of the following is not related with following plants ?