Sodium hydroxide (NaOH) is prepared industrially by the electrolysis of brine. The by-product chlorine is used in:
A. PVC and disinfectants
B. Glass manufacturing
C. Steel making
D. Fertilizer production
Answer: Option A
Solution (By JKExamLibrary)
Chlorine produced in the chlor-alkali process is used to manufacture PVC (polyvinyl chloride), bleaching powder, disinfectants, and solvents. Glass uses Na₂CO₃. Fertilizers use NH₃ and acids. Steel making uses oxygen. Chlorine is a versatile industrial chemical with many downstream products.
Explanation:
The element with atomic number 118 is Oganesson (Og). It is a synthetic element and a member of the noble gas group (Group 18). Ununennium is the temporary name for element 119, Tennessine is 117, and Nihonium is 113.
Explanation:
Ionic compounds consist of positive and negative ions held together by strong electrostatic forces of attraction (ionic bonds). A large amount of energy is required to overcome these forces, resulting in high melting and boiling points. They also conduct electricity when molten or in solution.
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