The Most Convenient Method To Protect Bottom Of Ship Made Of Iron Is

Which of the following ions form most stable complex compound?

Arrange Ce³⁺, La³⁺, Pm³⁺ and Yb³⁺ in increasing order of their ionic radii

The basic character of the transition metal monoxide follows the order

(At. No. of Ti = 22, V = 23, Cr = 24, Fe = 26)

The metallic oxide which impart purple colour to pottery is

The colour of ₆₂Sm³⁺ is yellow. The expected colour of ₆₆Dy³⁺ is

The actinoids showing +7 oxidation state are

The lanthanoids contraction relates to

A reduction in atomic size with increase in atomic number is a characteristic of elements of

Railway wagon axles are made by heating rods of iron embedded in charcoal powder. The process is known as

F₂ is formed by reacting K₂MnF₆ with