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What coulour does universal indicator turn when mixed with strong alkali?
Universal indicator turns deep blue or violet when mixed with a strong alkali.
What colour is sodium chloride in a universal indicator?
Sodium chloride is a neutral substance and will not exhibit a specific color in a universal indicator. Universal indicators change color based on the pH of a solution, not the presence of specific compounds like sodium chloride.
If universal indicator was added to the water after the reaction with caesium what colour would it be?
The universal indicator in water after the reaction with cesium would likely turn purple. Universal indicator changes color to purple in the presence of strong bases like cesium hydroxide, which would be formed as a result of the reaction with cesium and water.
When the reaction with potassium had finished what would happen if you added universal indicator solution to the water?
If you add universal indicator solution to the water after the reaction with potassium, the indicator will change color depending on the pH of the solution. Potassium reacts with water to form potassium hydroxide, which is a strong base. The solution will likely turn purple or blue indicating a high pH.
What happens when sodium is added to water and universal indicator?
When sodium is added to water, it reacts vigorously, releasing hydrogen gas and forming sodium hydroxide. The solution will become alkaline due to the formation of sodium hydroxide. When universal indicator is added, it will change color to indicate a high pH level, typically turning purple or blue for strong alkaline solutions.
