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.

ii) Evolution of _____ gas resulted in fizzing on the surface of iron structure.

hydrogen

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nitrogen

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oxygen

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chlorine

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Solution

The correct option is A hydrogen
Generally, metals react with acids to form metal salt along with hydrogen gas.
In this case, spilling of hydrochloric acid has taken place over iron metal structure. This iron reacts with $H C l$ to form hydrogen gas resulting in fizzing on the surface.

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Similar questions

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.

iv) Hydrochloric acid is a _________ acid and dissociates ____________ in water.

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.

i) The specialists want to know about the spillage into the lake using litmus paper. Which of the following observations will be true.

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.

iii) The specialists took a sample of water from the lake. Which of the following can be used to neutralise its acidity?

A road tanker carrying an acid was involved in an accident and its contents spilled on the road. At the side of the road, iron drain covers began melting and fizzing as the acid ran over them. A specialist was called to see if the acid actually leaked into the nearby river.
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(b) Explain why drain covers began fizzing as the acid rain over them.

Q. Equal lengths of magnesium ribbons are taken in test tubes

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The correct option is A hydrogenGenerally, metals react with acids to form metal salt along with hydrogen gas. In this case, spilling of hydrochloric acid has taken place over iron metal structure. This iron reacts with HCl to form hydrogen gas resulting in fizzing on the surface.

The correct option is A hydrogen
Generally, metals react with acids to form metal salt along with hydrogen gas.
In this case, spilling of hydrochloric acid has taken place over iron metal structure. This iron reacts with $H C l$ to form hydrogen gas resulting in fizzing on the surface.