Question

Radium is a radioactive substance. It dissolves in dilute $H_{2}S{O}_4$ and forms compound radium sulphate. What is the compound ?

• A. No longer radioactive
• B. Half as radioactive as radium content
• C. As radioactive as the radium content.
• D. Twice as radioactive as the radium content

Answer 1

The correct option is C As radioactive as the radium content.

Radium forms much the same insoluble salts as radium sulfate. It is highly insoluble in water. The great insolubility of radium sulfate means that it is one of the less biologically dangerous radium compound.