Samples of three metals ‘A’, ‘B’ and ‘C’ were taken and added to the cold water, hot water and steam one by one. The results obtained have been tabulated as follows:MetalCold waterHot waterSteamABCNo reactionNo reactionReactsNo reactionReactsReactsReactsReactsReactsNow, choose the correct option(s)One/More correct answer(s)A.‘B’ can replace ‘A’ from its salt solution and ‘C’ can replace ‘A’ from its salt solutionB.‘A’, ‘B’ and ‘C’ can be Fe, Mg and Na respectivelyC.Cu can replace ‘B’ from its salt solution, but can’t replace ‘A’ from its salt solutionD.‘B’ and ‘C’ react with dilute hydrochloric acid to evolve hydrogen gas, but ‘A’ does not react with dilute hydrochloric acid
Question
Samples of three metals ‘A’, ‘B’ and ‘C’ were taken and added to the cold water, hot water and steam one by one. The results obtained have been tabulated as follows:MetalCold waterHot waterSteamABCNo reactionNo reactionReactsNo reactionReactsReactsReactsReactsReactsNow, choose the correct option(s)One/More correct answer(s)A.‘B’ can replace ‘A’ from its salt solution and ‘C’ can replace ‘A’ from its salt solutionB.‘A’, ‘B’ and ‘C’ can be Fe, Mg and Na respectivelyC.Cu can replace ‘B’ from its salt solution, but can’t replace ‘A’ from its salt solutionD.‘B’ and ‘C’ react with dilute hydrochloric acid to evolve hydrogen gas, but ‘A’ does not react with dilute hydrochloric acid
Solution
The question is asking to choose the correct option(s) based on the reactions of metals 'A', 'B', and 'C' with cold water, hot water, and steam.
Let's analyze each option:
A. ‘B’ can replace ‘A’ from its salt solution and ‘C’ can replace ‘A’ from its salt solution
- This statement is not necessarily true. The reactivity of a metal with water does not directly correlate with its ability to replace another metal from its salt solution.
B. ‘A’, ‘B’ and ‘C’ can be Fe, Mg and Na respectively
- This statement could be true. Fe (Iron) does not react with cold or hot water, but reacts with steam, similar to metal 'A'. Mg (Magnesium) does not react with cold water, but reacts with hot water and steam, similar to metal 'B'. Na (Sodium) reacts with cold water, hot water, and steam, similar to metal 'C'.
C. Cu can replace ‘B’ from its salt solution, but can’t replace ‘A’ from its salt solution
- This statement is not necessarily true. The reactivity of a metal with water does not directly correlate with its ability to replace another metal from its salt solution.
D. ‘B’ and ‘C’ react with dilute hydrochloric acid to evolve hydrogen gas, but ‘A’ does not react with dilute hydrochloric acid
- This statement could be true. Metals that react with water are likely to react with dilute hydrochloric acid to evolve hydrogen gas. Since 'A' does not react with cold or hot water, it may not react with dilute hydrochloric acid.
Based on this analysis, the correct options could be B and D. However, without further information or context, it's not possible to definitively determine the correct answer(s).
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