Question:

Thomas slag is:

Updated On: Jul 28, 2022
  • $ C{{a}_{3}}{{(P{{O}_{4}})}_{2}}.2{{H}_{2}}O $
  • $ C{{a}_{3}}{{(P{{O}_{4}})}_{2}}.CaSi{{O}_{3}} $
  • $ MgSi{{O}_{3}} $
  • $ CaSi{{O}_{3}} $
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

Thomas slag is also called as phosphatic slag. It is a mixture of calcium phosphate and calcium silicate. It is used as manure. Chemically it is $ C{{a}_{3}}{{(P{{O}_{4}})}_{2}}.CaSi{{O}_{3}}. $
Was this answer helpful?
0
0

Concepts Used:

Group 1 Elements

Group one of alkali metals is s-block elements with just one electron in their s-orbital. They are are alkali metals. They are named so because of the alkaline nature of the hydroxides and oxides.

Alkali metals are characterized by one s-electron in the valence shell of their atoms.

Alkali metals have a corresponding [Noble gas] ns1 electronic configuration. They occupy the first column of the periodic table. Alkali elements are:

  • Lithium(Li)
  • Sodium(Na)
  • Potassium (K)
  • Rubidium (Ru)
  • Cesium (Cs)
  • Francium (Fr)

They have occupied successive periods from first to seven. Francium is a radioactive element with very low half-life.

Electronic Configuration:

  • Alkali metals have one electron in their valence shell.
  • The electronic configuration is given by ns1. For example, the electronic configuration of lithium is given by 1ns1 2ns1.
  • They tend to lose the outer shell electron to form cations with charge +1 (monovalent ions).

This makes them the most electropositive elements and due to the same reason, they are not found in the pure state.