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ICSE Class 10 Chemistry 2017 Paper

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SECTION - II
Arrange the following as per the instruction given in the brackets :
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Question : 40 of 86
Marks: +1, -0
Na,Li,K\mathrm{Na}, \mathrm{Li}, \mathrm{K} (Increasing Ionisation Energy)
Solution:  
  K<Na<Li\; \mathrm{K} < \mathrm{Na} < \mathrm{Li}
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