SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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HClO3
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HClO2
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HClO
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HCl
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Detailed explanation-1: -Hydrochloric acid is an aqueous solution of HCl (pKa=−6), with the formula of HCl(H2O)x (x decreases with increasing concentration of HCl).
Detailed explanation-2: -Hydrochloric acid (HCl) is commonly used for the neutralization of alkaline agents, as a bleaching agent, in food, textile, metal, and rubber industries. It is neutralized if released into the soil and it rapidly hydrolyzes when exposed to water.
Detailed explanation-3: -HCl is a strong acid because it dissociates almost completely. By contrast, a weak acid like acetic acid (CH3COOH) does not dissociate well in water – many H+ ions remain bound-up within the molecule.
Detailed explanation-4: -Therefore, the main difference between hydrogen chloride and hydrochloric acid is that hydrogen chloride is a colorless gas at room temperature whereas hydrochloric acid is a solution.