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Module 3 Model Questions And Answers
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4
November 2023
2023/2024
A
Module 3 Model Questions And Answers
State one benefit of adding chlorine to water (1) - Answer-Kills germs
Suggest one possible hazard of adding chlorine to drinking water (1) - Answer-It is toxic
Explain the decrease in the atomic radii across the period from Na to Cl (3) - Answer-1)
nuclear charge increases
2) electron shielding remains the same
3) greater attraction to nucleus
Describe and explain the trend, down the group, in the reactivity of the Group 2
elements with water (5) -...
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