Copper oxide will turn blue or purple when Universal Indicator is put on it.
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Universal indicator turns blue or purple in ammonia solution. Ammonia is a weak base, so it causes the indicator to change to a blue or purple color on the pH scale. This color change indicates the basic nature of the solution due to the presence of ammonia molecules.
Universal indicator turns shades of blue or purple in an alkali.
Universal indicator would be dark blue or purple in a strong alkali.
Universal indicator will turn purple or blue when mixed with a weak alkali.
It wouldn't change at all as it is neutral
When magnesium oxide dissolves in water and universal indicator is added, the solution may turn blue or purple. Universal indicator changes color based on the pH of the solution, and in this case, the basic nature of magnesium oxide may cause the solution to shift towards these colors.
A neutral solution added to universal indicator will turn green.
The Universal Indicator would go green which is pH 7.
When magnesium is added to water with universal indicator, the indicator may initially turn blue (indicating a basic solution due to the formation of magnesium hydroxide) before turning back to its original color as the magnesium metal reacts with water to form magnesium hydroxide and hydrogen gas.
The color of universal indicator solution for bleach is typically blue or purple, indicating a high pH level.
red
Universal indicator turns dark blue or purple in a strong alkaline solution.
It depends on the concentration of the ammonia solution as the universal indicator can show a huge variety of colors.
Universal indicator solution turns a shade of red, orange, or yellow when added to an acidic solution.
Green
Bleach is a basic solution, so it will turn universal indicator to a purple color. This indicates a high pH level in the bleach solution.
Pink color in universal indicator typically indicates a solution is acidic, with a pH ranging from 1 to 3.