engineering recuitment BPSC AE Mock Test 2025 General Science Chemistry

ઓક્સિજનના એક અણુનું દળ _______ છે

1
2.3 × 10-23 ગ્રામ
2
3.3 × 10-23 ગ્રામ
3
4.3 × 10-23 ગ્રામ
4
5.3 × 10-23 ગ્રામ
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