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Question
ফেনফথ্যালিনের বর্ণ পরিবর্তনের
P
H
পরিসর-
4.2-6.3
8.3-10.0
3.2-4.6
2.0-4.0
ANSWER : 2
Descrption
<figure class="table"><table><tbody><tr><td><strong>নির্দেশক</strong></td><td><strong>pH সীমা</strong></td><td><strong>অম্লীয় দ্রবণ</strong></td><td><strong>ক্ষারীয় দ্রবণ</strong></td></tr><tr><td>মিথাইল অরেঞ্জ </td><td>3.1-4.0 </td><td>গোলাপি লাল</td><td>হলুদ </td></tr><tr><td>মিথাইল রেড</td><td>4.2-6.3 </td><td>লাল</td><td>হলুদ</td></tr><tr><td>ফেনফথ্যালিন</td><td>8.3-10</td><td>বর্ণহীন</td><td>গোলাপি</td></tr><tr><td>লিটমাস পেপার </td><td>6.0-8.0 </td><td>লাল</td><td>নীল</td></tr><tr><td>ব্রোমো ফেনল </td><td>3.0-4.6</td><td>হলুদ</td><td>লাল</td></tr></tbody></table></figure>
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