engineering recuitment BPSC AE Mock Test 2025 General Science Chemistry

ऑक्सिजनच्या एका रेणूचे वस्तुमान _______ असते

1

2.3 x 10^-23ग्रॅम

2

3.3 x 10^-23 ग्रॅम

3

4.3 x 10^-23ग्रॅम

4

5.3 x 10^-23 ग्रॅम

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