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Study of the First Element - Hydrogen — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYStudy of the First Element - Hydrogen2 Marks
Question
Name two alkaliesthat can displace hydrogen. Give balanced equations for the same. Why are the metals you have used considered to have a unique nature?
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Answer

NaOHand KOH
$Zn + 2NaOH → Na_2ZnO_2+ H_2$
$Zn + 2KOH → K_2ZnO_2+ H_2$​​​​​​​
Metals such as zinc, lead, and aluminium have a unique nature. They react with acids and can even react with hot alkalis to form hydrogen and soluble salt.

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