Nickel sulfate is green, sodium sulfate is colorless and sodium chloride is colo

Question

Nickel sulfate is green, sodium sulfate is colorless and sodium chloride is colorless. What color would you predict for the color of nickel chloride? To which ion is the color attributable? Sodium chromate is yellow. Predict the color of nickel chromate Nickel sulfate is green, sodium sulfate is colorless and sodium chloride is colorless. What color would you predict for the color of nickel chloride? To which ion is the color attributable? Sodium chromate is yellow. Predict the color of nickel chromate

Explanation / Answer

NiSO4 ( nickel sulfate ) is green

Na2SO4 ( sodium sulfate ) is colorless

NaCl ( sodium chloride ) is colorless.

Therefore, NiCl2 will be green in color.

Because, Ni2+ is responsible for color property.

Na2CrO4 ( sodium chromate ) is yellow.

NiCrO4 ( nickel chromate ) would be brown color. Since chromate is yellow in color and Ni2+ is green in color.

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