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In which of the following experiments would hydrogen

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29.In which of the following experiments would hydrogen be produced?(1)Electrolysis of sea water(2)Passing steam over heated magnesium(3)Adding zinc to dilute hydrochloric acidA(1) and (2) onlyB(1) and (3) onlyC(2) and (3) onlyD(1), (2) and (3)Answer D
11.5: The reactivity series of metals11.8: What determines the reactivity of a metal?30.Which of the following metals is the MOST reactive?BCD
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31.Which of the following combinations about the order of reactivity is correct?BeBBeCLi
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Question BankTopic3MetalsDBeKNaLiAnswer A32.Which of the following combinations about the order of readiness of losing electrons iscorrect?SrBBeCSrDBe
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33.Which of the following shows the correct descending order of reactivity of metals?AFe, Zn, Ag, CuAl, Fe, Cu, AuK, Na, Al, CaMg, Al, Pb, ZnAnswer BBCD
34.Potassium is more reactive than calcium becauseBCD
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35.Which of the following statements are correct?(1)Metals react by losing electrons.(2)Metals react by forming cations.(3)The more reactive a metal is, the more readily it loses electrons.A
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36.Barium is a Group II element below calcium in the periodic table. Which of the
Question BankTopic3Metalsfollowing statements about barium are correct?(1)It loses electrons more readily than calcium does.(2)It reacts vigorously with cold water.(3)It can be obtained from electrolyzing molten barium chloride.A
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