please answer this MCQ questions please i want correct answer then I will marked as brain list and give 30 thanks please don't spam
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1) 27
2)85.5
3)increases by 37.5%
4)15:8
5)3×10^7
6) increases
7)3.09×10^15s-1
8)2.5h/π
9)No+,C2 2-,CN-,N2
10)494nm
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