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The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Raney nickel, which is used as a catalyst, is obtained:
  • A
    By grinding solid nickel.
  • B
    By treating nickelaluminium alloy with dilute NaOH.
  • C
    By treating nickelaluminium alloy with dilute HCl.
  • D
    By heating nickel tetracarbonyl.
✓

Answer

  1. By treating nickelaluminium alloy with dilute NaOH.

Explanation:

Raney nickel, s solid catalyst composed of fine grains of a nickel Aluminium alloy which is used in many industrial process. It is obtained by treating nickel-Aluminium alloy with dilute NaOH.

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