12th Chemistry - Online MCQs Test - Past Year Paper 2018

Past Year Paper Online MCQs Test [Chemistry 2018] class 12th

17 mcqs from chemistry past year exam 2018 for class 12th (karachi board / science group)

1/17

jQuizMe

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All noble gases fulfill the octet rule except:

1. Kr
2. Ne
3. Ar
4. He

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