Which of the following is used as Catalyst in the hydrogenation of oil?
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Ni
Explanation:
Non-precious metal catalysts, especially those based on nickel (such as Raney Nickel and Urushibara Nickel) are generally used as catalyst in the hydrogenation of oils. Palladium can also be used but it is very costly.
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Generally transition elements form coloured salts due to the presence of unpaired electrons. Which of the following compounds will be coloured in solid state?