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MODEL PAPER 7 — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 71 Mark
Question
A halogen used in potential blood substitutes in surgery is:
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Answer

(a) Fluorine
Explanation: Certain fully fluorinated compounds are being considered as potential blood substitutes in surgery. So fluorine is the element used in these blood substitutes.

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