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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 : 42 of 86
Marks: +1, -0
Na,K,Li\mathrm{Na}, \mathrm{K}, \mathrm{Li} (Increasing atomic size)
Solution:  
  Li<Na<K\; \mathrm{Li} < \mathrm{Na} < \mathrm{K}
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