What will be the Reaction for the preparation of Hydrogen chloride gas?
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Answer:
Metal + Acid - Metaloxide + hydrogen gas
Eg. Al+HCl - AlCl3 + H2
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Hydrogen chloride may be formed by the direct combination of chlorine (Cl2) gas and hydrogen (H2) gas; the reaction is rapid at temperatures above 250 °C (482 °F). The reaction, represented by the equation H2 + Cl2 → 2HCl, is accompanied by evolution of heat and appears to be accelerated by moisture.
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