‘Red ink’ is prepared from-
'लाल स्याही' किस से तैयार की जाती है?
□ Phenol(फिनोल)
□ Aniline(विनील)
□ Congo red(कांगो लाल)
□ Eosin(इओसिन)
Correct Option : Eosin(इओसिन)
Eosin is a Tetrabromofluorescein. Most red inks are dilute solution of the red dye eosin.
Sabhi goverment ki tayari ke liye
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भारतीय जलवायु तथ्य नक्शा
वन क्षेत्र संकेत भारतीय नक्शा
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Ocean notes PDF महासागर प्रशांत महासागर प्रशांत महासागर के तथ्य अटलांटिक महासागर हिंद महासागर आर्कटिक महासागर दक्षिण महासागर
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