رنی نکل مل کر کے _____ کے ساتھ این اے او ایچکے ساتھ تیار کیا جاتا ہے۔
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A. None of these
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B. Ni-Cu
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C. Ni-Al
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D. Ni-Ag
Explanation
Raney nickel is prepared by treating a nickel-aluminum (Ni-Al) alloy with concentrated NaOH.
This process removes aluminum, leaving behind porous nickel, which acts as an excellent hydrogenation catalyst.
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A. Ni-Cu
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B. Ni-Al
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C. Ni-Pb
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D. Ni-Ag
Explanation
Raney nickel is prepared by treating a nickel-aluminum alloy with a concentrated solution of sodium hydroxide.
This process, also known as activation, dissolves much of the aluminum, leaving behind a porous, highly active nickel catalyst.
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