The number of moles of KMnO₄ reduced by one mole of KI in alkaline medium is
The number of moles of KMnO₄ reduced by one mole of KI in alkaline medium is Options (a) one (b)…
7 years ago
D and F Block Elements
Among the following pairs of ions, the lower oxidation state in aqueous solution
Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other in…
7 years ago
The basic character of the transition metal monoxides follows the order.
The basic character of the transition metal monoxides follows the order (Atomic nos. Ti = 22, V = 23, Cr…
7 years ago
Which of the following elements are analogous to the lanthanides
Which of the following elements are analogous to the lanthanides Options (a) Carbides (b) Borides (c) Actinides (d) Hydrides Correct…
7 years ago
Which of the following shows maximum number of oxidation states
Which of the following shows maximum number of oxidation states Options (a) Cr (b) Fe (c) Mn (d) V Correct…
7 years ago
Which of the following compounds is known as white vitriol
Which of the following compounds is known as white vitriol Options (a) ZnSO₄.7H₂O (b) CaCO₄.2H₂O (c) Na₂SO₄.7H₂O (d) MgSO₄.7H₂O Correct…
7 years ago
General electronic configuration of lanthanides is
General electronic configuration of lanthanides is Options (a) (n - 2) f¹⁻¹⁴ (n - 1) s²p⁶d⁰⁻¹ ns² (b) (n -…
7 years ago
Which of the following is not an actinide
Which of the following is not an actinide Options (a) Uranium (b) Curium (c) Californium (d) Erbium Correct Answer: ErbiumExplanation:No…
7 years ago
Which one of the following elements constitutes a major impurity in pig iron
Which one of the following elements constitutes a major impurity in pig iron Options (a) Sulphur (b) Oxygen (c) Silicon…
7 years ago
Lanthanides and actinides resemble in
Lanthanides and actinides resemble in Options (a) electronic configuration (b) oxidation state (c) ionization energy (d) formation of complexes Correct…
7 years ago