Question

a solution 'X' gives orange color when a drop of universal indicator is added to it.on the other hand, another solution 'Y' gives bluish green color when a drop of universal indicator is added to it. (a) what are the types of solution 'X' and 'Y' ? (b) what type of PH value would they have ?

Answer 1

So here you go.

a)X is weakly acidic as it gives orange colour.
Y is Weakly basic as it gives bluish green.

b)pH of X=3-6.
pH of Y=7-9.

Thanks.
Tripathy

Answer 2

Given:

Solution 'X' gives orange color in reaction with universal indicator

Solution 'Y' gives bluish green color in reaction with universal indicator.

To find:

Solution 'X' and 'Y' and their pH values.

Solution:

• The reference value for the color formed with the universal indicator is as follows:

1. Red - pH value less than 3, Strong acid
2. Orange or Yellow - pH value 3-6, weak acid
3. Green - pH value 7, Neutral substance
4. Blue or bluish green - pH value 8-11, weak base
5. Violet or indigo - pH value above 11, strong base

• Solution X gives orange color with the universal indicator. It means that it is a weak acid and its pH may range from 3-6.

Orange or Yellow - pH value 3-6, weak acid

• Solution Y gives bluish green which means that it is a weak base and its pH ranges from 8-11.

Blue or bluish green - pH value 8-11, weak base

Conclusion:

Thus it is inferred that 'X' is a weak acid with pH ranging from 3-6, whereas 'Y' is weak base with pH ranging from 8-11.

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