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ICSE Class 10 Chemistry 2015 Paper

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SECTION - II
Arrange the following as per the instructions given in the brackets :
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Question : 35 of 85
Marks: +1, -0
Na,K,Cl,S,Si\mathrm{Na}, \mathrm{K}, \mathrm{Cl}, \mathrm{S}, \mathrm{Si} (increasing order of ionization energy)
Solution:  
  K<Na<Si<S<Cl\; \mathrm{K} < \mathrm{Na} < \mathrm{Si} < \mathrm{S} < \mathrm{Cl}
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