Three solutions X, Y, and Z are added separately to the phenolphthalein indicator. X and Y show no change in the colour of phenolphthalein while Z changes its colour to pink. Identify X, Y, and Z.

X : H C l; Y : K O H; Z : N a O H

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X : H C l; Y : N a O H; Z : C_{6} H_{12} O_{6}

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X : H C l; Y : N a O H; Z : K O H

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X : H C l; Y : C_{6} H_{12} O_{6}; Z : N a O H

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Solution

The correct option is D $X : H C l; Y : C_{6} H_{12} O_{6}; Z : N a O H$
.

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Similar questions

Q. Mention the colour changes observed when the following indicators are added to acids:
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(c) Neutral litmus solution.

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Q. What will be the change in colour when a drop of phenolphthalein indicator is added to magnesium nitrate .Also write the acid and base for it.

Litmus, phenolphthalein and methyl orange are the common acid-base indicators. Basically these are organic dyes with characteristic colours. Litmus is the extract of the plant lichen. Phenolphthalein and methyl orange are synthesised in the laboratory. An indicator imparts a specific colour to an acidic solution and its colour changes. when the solution becomes basic or alkaline. The same applies to the basic solution as well. Will there be a color change if dilute HCl solution is slowly added to the solution of ${Na}_{2} {CO}_{3}$ and few drops of methyl orange?

When Phenolphthalein was added to a base, its color changed to pink. Despite adding some acid to the mixture, its colour remained pink. What could be the reason?

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Three solutions X, Y, and Z are added separately to the phenolphthalein indicator. X and Y show no change in the colour of phenolphthalein while Z changes its colour to pink. Identify X, Y, and Z.

The correct option is D X: HCl; Y: C6H12O6; Z: NaOH.

The correct option is D $X : H C l; Y : C_{6} H_{12} O_{6}; Z : N a O H$
.