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Question : 100 of 100
Marks:
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Solution:
The correct answer is Caustic Soda.
- Caustic Soda is the common name of Sodium Hydroxide.
- Chemical formula of Caustic Soda is NaOH.
- Sodium hydroxide is a white, translucent solid.
- Sodium hydroxide contains sodium cations and hydroxide anions.
- Sodium hydroxide cannot conduct electricity in its solid-state(ions are not free to move).
- Crystals of sodium hydroxide are deliquescent.
- Sodium hydroxide conducts electricity once it changes its physical state from solid to liquid.
- It melts at 591 K.
- Sodium cations and hydroxide anions are free to move in a liquid state and it will conduct electricity.
- It is readily soluble in water to give a strong alkaline solution.
- The sodium hydroxide solution at the surface reacts with the CO2 in the atmosphere to form Na2CO3
- Sodium hydroxide is generally prepared commercially by the electrolysis of sodium chloride in the Castner-Kellner cell.
- Uses of Sodium hydroxide:
- Manufacturing of soap, paper, artificial silk.
- Petroleum refining.
- In the purification of bauxite.
- in the textile industries for mercerising cotton fabrics.
- Sugar solution, Spirit, and Distilled water are NOT best conductors of electricity because they do not contain any ions.
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