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3. Which color change isobserved on adding a drop ofphenolphthalein is added to asolution of calcium hydroxide ?​

Answer» <html><body><p><strong>Answer:</strong></p><p><strong>It is colorless when it is an <a href="https://interviewquestions.tuteehub.com/tag/acid-847491" style="font-weight:bold;" target="_blank" title="Click to know more about ACID">ACID</a> and pink when it is a <a href="https://interviewquestions.tuteehub.com/tag/base-892693" style="font-weight:bold;" target="_blank" title="Click to know more about BASE">BASE</a>. Lime water is a calcium hydroxide <a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a>, <a href="https://interviewquestions.tuteehub.com/tag/ca-375" style="font-weight:bold;" target="_blank" title="Click to know more about CA">CA</a>(OH)<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>, which is a base. Lime water was added to the regular water in the solution. Lime water is a base, so when the phenolphthalein was added to the solution, it turned the solution pink.</strong></p><p><strong>Hope it helps you..</strong></p></body></html>


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