Mcqs Test 7 Chemistry Online Mock Test for SPSC SST (BPS-16) | Lecturer (BPS-17) | IBA PST JEST ECT & (BPS 5 to 15) jobs

August 29, 2023

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1 comment:

baiz12 November 2023 at 01:09
Number of electron in oxygen valence shell is 6. There is need to correct the answer.
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