Which of the following metals react vigorously with cold water?
A
H2CO3
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B
HCl
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C
CH3COOH
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D
H2SO4
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Solution
The correct options are A
H2CO3
D
H2SO4
Metals such as potassium and sodium react violently with cold water. The reaction is so violent and exothermic that the evolved hydrogen immediately catches fire.