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Question
Metal which reacts vigorously with HCl to produce salt and hydrogen is :
Metal which reacts vigorously with HCl to produce salt and hydrogen is :
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Solution
The correct option is A Na
For a metal to react with an acid to form a salt and hydrogen gas, it has to be above hydrogen in the electrochemical series.
The electrochemical Series is a list of elements in order of their reactivity (high to low).
Sodium reacted most vigorously hence producing a lot of hydrogen gas.
2Na+2HCl→2NaCl+H2
Zinc should also have produced hydrogen gas quickly, however not as quickly or vigorously as Sodium (Na), and reactivity will be lesser for tin (Sn) and lead (Pb) respectively.
For a metal to react with an acid to form a salt and hydrogen gas, it has to be above hydrogen in the electrochemical series.
The electrochemical Series is a list of elements in order of their reactivity (high to low).
Sodium reacted most vigorously hence producing a lot of hydrogen gas.
2Na+2HCl→2NaCl+H2
Zinc should also have produced hydrogen gas quickly, however not as quickly or vigorously as Sodium (Na), and reactivity will be lesser for tin (Sn) and lead (Pb) respectively.
The electrochemical Series is a list of elements in order of their reactivity (high to low).
Sodium reacted most vigorously hence producing a lot of hydrogen gas.
2Na+2HCl→2NaCl+H2
Zinc should also have produced hydrogen gas quickly, however not as quickly or vigorously as Sodium (Na), and reactivity will be lesser for tin (Sn) and lead (Pb) respectively.
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