In a manufacturing unit of hydrochloric acid situated near a lake, an accident occurs resulting in spillage and leakage of the storage tanks containing hydrochloric acid. The spillage spreads all over an iron structure and also into the lake. The specialists are called for an inspection, who observe fizzing on the surface of the iron structure.

iv) Hydrochloric acid is a _ acid and dissociates ____ in water.

weak, completely

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strong, partially

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weak, partially

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strong, completely

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Solution

The correct option is D strong, completely
On the basis of strength, acids can be categorised as strong and weak.

Strong acids are the acids which ionise/dissociate completely in water and gives more $H^{+}$ ions. Examples - Sulphuric acid, hydrocholoric acid, etc.
Weak acids, on the other hand, ionise/dissociate partially in water and gives less $H^{+}$ ions. Examples - Acetic acid, oxalic acid, etc.

$H C l$ is a strong acid and dissociates completely in water. Hence, the correct answer is d.

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Q. In a manufacturing unit of hydrochloric acid situated near a lake, an accident occurs resulting in spillage and leakage of the storage tanks containing hydrochloric acid. The spillage spreads all over an iron structure and also into the lake. The specialists are called for an inspection, who observe fizzing on the surface of the iron structure.

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Q. In a manufacturing unit of hydrochloric acid situated near a lake, an accident occurs resulting in spillage and leakage of the storage tanks containing hydrochloric acid. The spillage spreads all over an iron structure and also into the lake. The specialists are called for an inspection, who observe fizzing on the surface of the iron structure.

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Q. (a) What are metals? Name five metals.
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