Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 4 –4 Zero 8 4 –4 Zero 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following iron ores, the highest percentage of iron content is found in– Magnetite Haemetite Limnonite None of these Magnetite Haemetite Limnonite None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry This group of alumino-silicate minerals is widely used in making electrical insulators Manganese Mica Chromite Bauxite Manganese Mica Chromite Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is used for making vinegar. Malic acid Tartaric acid Oxalic acid Acetic acid Malic acid Tartaric acid Oxalic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of fire extinguisher is used for petroleum fire ? Foam type None of these Soda acid type Powder type Foam type None of these Soda acid type Powder type ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Nitrogen Helium Air Hydrogen Nitrogen Helium Air Hydrogen ANSWER DOWNLOAD EXAMIANS APP
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