অনুসন্ধান করুন
Indicator paper
01
ইন্ডিকেটর পেপার, টেস্টিং পেপার
a special paper treated with chemicals that change color in response to certain conditions, used to test for the presence of specific substances or measure pH levels
indicator paper
n
উদাহরণ
The indicator paper quickly changed from blue to green, signaling the presence of a base.
