Teaching UP PGT Mock Test Series 2024 General Science Chemistry Periodic Table

बोरैक्स (सोडियम टेट्राबोरेट) का रासायनिक सूत्र है

1

Na₂B₄O₇.4H₂O

2

Na₂B₄O₇.7H₂O

3

Na₂B₄O₇.10H₂O

4

Na₂B₄O₇

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