What is the action of the following on lanthanoids? Sulphur, heat

The action of sulphur on lanthanoids: Lanthanoids react with sulphur on heat and forms lanthanide sulphide. Here is the chemical reaction: 2 Ln + 3 S → ∆ Ln 2 S 3

What is the action of the following on lanthanoids? Nitrogen, heat

The reaction of nitrogen on lanthanoid: Reaction with nitrogen on heat gives lanthanoid nitrides. Here is the chemical reaction: Ln + 1 2 N 2 → ∆ LnN .

What is the action of the following on lanthanoids? water

The action of water on lanthanoids: Lanthanoids react with water and form ionic and basic lanthanide hydroxides with the liberation of hydrogen gas. Here is the chemical reaction: Ln + 3 H 2 O → Ln ( OH ) 3 + 3 H 2 .

What are ‘d’ and ‘f’ block elements?

The d-block of the modern periodic table contains the elements of the groups 3-12 in which the d orbitals are progressively filled in each of the four long periods. The f-block consists of elements in which 4 f and 5 f orbitals are filled. They are placed in a separate panel at the bottom of the periodic table.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - d and f Block Elements>Maharashtra Board-2019>Q 6

EASY

12th Maharashtra Board

IMPORTANT

Earn 100

What is Nessler’s reagent?

Important Questions on d and f Block Elements

HARD

12th Maharashtra Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - d and f Block Elements>Maharashtra Board-2019>Q 7

How is potassium dichromate prepared from chrome iron ore?

HARD

12th Maharashtra Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 8 - d and f Block Elements>Maharashtra Board-2019>Q 8

Explain the position of actinoids in the periodic table. What is the action of sulphur on lanthanoids? Calculate the magnetic moment of divalent ion in aqueous solution if its atomic number is