ইন্ডিকেটর কি | What is Indicator? - Time Of BD - Education Blog

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ইন্ডিকেটর কি | What is Indicator?

Educational help

July 25, 2022

ইন্ডিকেটর কি | What is Indicator?

ইন্ডিকেটর কি?

ইন্ডিকেটর:-নির্দেশক হল এমন কোনো পদার্থ যা একটি দৃশ্যমান চিহ্ন দেয়, সাধারণত রঙ পরিবর্তনের মাধ্যমে, একটি রাসায়নিক প্রজাতির থ্রেশহোল্ড ঘনত্বের উপস্থিতি বা অনুপস্থিতি, যেমন একটি দ্রবণে অ্যাসিড বা ক্ষার। উদাহরণস্বরূপ, মিথাইল ইয়েলো নামক একটি পদার্থ একটি ক্ষারীয় দ্রবণকে হলুদ রঙ দেয়।

What is Indicator?

Indicator:-indicator is any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. For example, a substance called methyl yellow imparts a yellow colour to an alkaline solution.

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