Nickel | MCQs

Explanation

In the complex  [Ni(CN) 4] ^2−, nickel is in the +2 oxidation state and is surrounded by four cyanide (CN⁻) ligands.

According to Crystal Field Theory and based on the strong field nature of cyanide ligands, the complex adopts a square planar geometry.

Explanation

• The main constituent of Permalloy is nickel-iron.
• Permalloy is a nickel-iron magnetic alloy, with about 80% nickel and 20% iron content, and is used as a magnetic core material in electrical and electronic equipment, as well as in magnetic shielding to block magnetic fields.