Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are
Table:
(X) (Y) (a) (b) (c) (d)
Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are
Table:
| (X) | (Y) | |
|---|---|---|
| (a) | ||
| (b) | ||
| (c) | ||
| (d) |
Options
(a)
Analysis & Explanation
The correct answer is (a) because when phenolphthalein is added to the solution of salt 'X', it turns pink, indicating that the solution is basic. According to the table, a basic solution has a pH more than 7. The solution 'Y' does not show any change in colour, indicating that it is acidic. Therefore, 'X' is and 'Y' is .
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2023?
This question carries 1 mark in the CBSE Class 10 Science 2023 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Acids, Bases and Salts" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "pH" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2023 paper?
This is a MCQ question from Section Section A in the CBSE Class 10 Science 2023 paper.