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Question:
Dead burnt plaster is
Dead burnt plaster is
Updated On: Sep 3, 2024
- $CaSO_{4}$
- $CaSO_{4} . \frac{1}{2} H_2O$
- $CaSO_{4} . H_2O$
- $CaSO_{4} . 2 H_2O$
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The Correct Option is A
Solution and Explanation
Anhydrous $CaSO_4$ is known as dead burnt plaster.
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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.
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- Lithium(Li)
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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.
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