D and F Block Elements Archives - Page 2 of 10

The magnetic moment of Sc³⁺ is Options (a) 1.86 (b) 2.76 (c) 0 (d) 1.76 Correct Answer: 0Explanation:No explanation available.…

6 years ago

Which of the following metal is not ferromagnetic Options (a) Cobalt (b) Iron (c) Manganese (d) Nickel Correct Answer: Manganese…

6 years ago

The hardness of transition elements is due to their Options (a) large atomic size (b) metallic bonding (c) covalent bonding…

6 years ago

Which of the following atomic number of uranium is the most radioactive Options (a) U-226 (b) U-238 (c) U-235 (d)…

6 years ago

Oxidation state of iron in [Fe(H₂O)₅NO]SO₄ is Options (a) 1 (b) 2 (c) 3 (d) 4 Correct Answer: 1Explanation:No explanation…

6 years ago

Permanganate ion changes to ..... in acidic medium Options (a) MnO₄²⁻ (b) Mn²⁺ (c) Mn³⁺ (d) MnO₂ Correct Answer: Mn²⁺Explanation:No…

6 years ago

In the laboratory, manganese(II) salt is oxidised to permanganate ion in aqueous solution by Options (a) hydrogen peroxide (b) conc.nitric…

6 years ago

The acidic, basic or amphoteric nature of Mn₂O₇, V₂O₅ and CrO are respectively Options (a) acidic, acidic and basic (b)…

6 years ago

which of the following ions has the maximum magnetic moment Options (a) Sc³⁺ (b) Ti³⁺ (c) Fe³⁺ (d) V³⁺ Correct…

6 years ago

Which of the following pairs of transition metal ions are the stronger oxidising agents in aqueous solution Options (a) V²⁺…

6 years ago