Chemistry Liquid Nitrogen boils at 54 kelvin 97 Kelvin 82 Kelvin 77 kelvin 54 kelvin 97 Kelvin 82 Kelvin 77 kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following ions , the colour is not due to d-d transition ? [Ti(H2O)6]3+ [CrO4]2− [Cu(NH3)4]2+ [CoF6]3+ [Ti(H2O)6]3+ [CrO4]2− [Cu(NH3)4]2+ [CoF6]3+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Burning pyrites ore gives out Carbon dioxide gas Sulphur dioxide gas Nitrogen dioxide gas Nitric oxide gas Carbon dioxide gas Sulphur dioxide gas Nitrogen dioxide gas Nitric oxide gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a characteristic feature of alloys? They are Solutions Mixtures Homogeneous systems Compounds Solutions Mixtures Homogeneous systems Compounds ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which mineral is the ore of aluminium ? Bauxite Siderite Magnetite Haematite Bauxite Siderite Magnetite Haematite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Calcination Refining Roasting Smelting Calcination Refining Roasting Smelting ANSWER DOWNLOAD EXAMIANS APP
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