Hydrogen Chloride Chemistry Quiz

<p>-83 °C (A)</p> Signup and view all the answers

<p>Pungent and choking (C)</p> Signup and view all the answers

<p>It dissociates into hydrogen and chlorine. (B)</p> Signup and view all the answers

<p>When hydrochloric gas is dissolved in water. (A)</p> Signup and view all the answers

<p>It is neither combustible nor supports combustion. (C)</p> Signup and view all the answers

<p>Zinc chloride and hydrogen gas. (D)</p> Signup and view all the answers

<p>Calcium and zinc. (A)</p> Signup and view all the answers

<p>It may evaporate and mix with HCl. (D)</p> Signup and view all the answers

<p>They react with hydrogen chloride. (A)</p> Signup and view all the answers

<p>By downward delivery. (A)</p> Signup and view all the answers

<p>NaHSO4 + NaCl $ ightarrow$ Na2SO4 + HCl (B)</p> Signup and view all the answers

<p>HCl reacts with water. (D)</p> Signup and view all the answers

<p>Direct combination of hydrogen and chlorine gases (C)</p> Signup and view all the answers

<p>NaCl + H₂SO₄ → NaHSO₄ + HCl (B)</p> Signup and view all the answers

<p>In sunlight (A)</p> Signup and view all the answers

<p>Decomposing hydrochloric acid (D)</p> Signup and view all the answers

<p>Sodium bisulfate and hydrogen chloride (D)</p> Signup and view all the answers

<p>The high solubility of HCl gas in water. (C)</p> Signup and view all the answers

<p>It turns red, indicating an acidic environment. (B)</p> Signup and view all the answers

<p>It creates a pressure difference that draws water upward. (A)</p> Signup and view all the answers

<p>A fountain-like rise of water into the gas tube. (A)</p> Signup and view all the answers

<p>It becomes slightly acidic due to the gas forming droplets. (A)</p> Signup and view all the answers

<p>Sodium chloride and water (C)</p> Signup and view all the answers

<p>Silver chloride and nitric acid (C)</p> Signup and view all the answers

<p>It assists in protein digestion (D)</p> Signup and view all the answers

<p>Digestion of carbohydrates (B)</p> Signup and view all the answers

<p>It dissolves to form a complex salt (D)</p> Signup and view all the answers

<p>It allows for the gas to dissolve efficiently in water. (A)</p> Signup and view all the answers

<p>HCl acid has a sweet taste. (C)</p> Signup and view all the answers

<p>Magnesium chloride and hydrogen gas (B)</p> Signup and view all the answers

<p>HCl acid can cause severe burns and irritation. (D)</p> Signup and view all the answers

<p>Hydrogen gas and calcium chloride are produced. (B)</p> Signup and view all the answers

<p>Sulfuric acid (B)</p> Signup and view all the answers

<p>Hydrochloric acid (B)</p> Signup and view all the answers

<p>Upward displacement of air (A)</p> Signup and view all the answers

<p>It is a drying agent. (A)</p> Signup and view all the answers

<p>Water (D)</p> Signup and view all the answers

A method of producing hydrogen chloride (HCl) involving the direct reaction of hydrogen gas (H₂) with chlorine gas (Cl₂) in the presence of sunlight.

A chemical reaction where a metallic chloride (like NaCl) is heated with concentrated sulfuric acid (H₂SO₄) to produce hydrogen chloride gas (HCl).

Concentrated nitric acid is not used during HCl preparation because it is volatile and may escape alongside the hydrogen chloride gas.

HCl gas is purified by passing it through concentrated sulfuric acid (H2SO4) because it is a strong drying agent that does not react with HCl.

P2O5 and CaO cannot be used to dry HCl because they react with it, producing other compounds.

HCl is collected by downward delivery because it is denser than air (1.28 times heavier).

HCl cannot be collected over water because it dissolves readily in water, forming hydrochloric acid.

Hydrogen chloride (HCl) is a colorless gas at room temperature.

Hydrogen chloride (HCl) readily dissolves in water, forming hydrochloric acid. This means it's highly soluble.

The fumes are caused by hydrochloric acid forming when HCl gas reacts with moisture in the air.

High temperatures can damage glass apparatus and waste fuel, so 200°C is a safe upper limit when working with HCl.

Hydrogen chloride has a sharp, pungent smell that can be very irritating to the nose and respiratory system.

A chemical demonstration showing that hydrogen chloride (HCl) gas is highly soluble in water.

Hydrochloric acid (HCl) is formed when hydrogen chloride (HCl) gas dissolves in water.

The pressure difference created by the dissolving HCl gas causes water to rise up the jet tube, creating the fountain effect.

The blue litmus solution turns red due to the acidic nature of hydrochloric acid (HCl) formed from the dissolved HCl gas.

The surrounding air becomes slightly acidic due to the formation of tiny HCl droplets.

Hydrogen chloride gas (HCl) does not burn and does not support burning. It does not ignite or fuel a fire.

When heated to a very high temperature (500°C), HCl gas breaks down into hydrogen gas (H₂) and chlorine gas (Cl₂).

HCl reacts with some metals, like calcium (Ca) and zinc (Zn). This produces a salt and hydrogen gas.

When HCl gas dissolves in water, it forms hydrochloric acid (HCl(aq)).

Hydrochloric acid (HCl(aq)) is a strong acid. It ionizes in water to form hydronium ions (H₃O⁺) and chloride ions (Cl⁻).

Hydrochloric acid (HCl) reacts with metallic oxides and hydroxides to form a salt and water. This reaction is a neutralization reaction.

Hydrochloric acid (HCl) is used to prepare a solution called aqua regia, which is a highly corrosive mixture that can dissolve noble metals like gold and platinum.

Hydrochloric acid (HCl) plays a crucial role in the digestion of proteins in the stomach, aiding in the breakdown of food molecules.

When silver nitrate (AgNO₃) reacts with hydrochloric acid (HCl), it forms a white precipitate of silver chloride (AgCl) which is insoluble in nitric acid but soluble in ammonia hydroxide solution.

Hydrochloric acid (HCl) is widely used in various industries, including the manufacture of dyes, drugs, and photographic chemicals.

A setup used to produce hydrogen chloride (HCl) gas through the reaction of concentrated sulfuric acid (H₂SO₄) with a chloride salt (NaCl). The setup minimizes the back suction phenomenon, preventing the unintended flow of water from the delivery tube into the reaction flask.

HCl gas quickly dissolves in water, making it vital to minimize back suction. This prevents water from being pushed into the flask and interrupting the reaction.

HCl is colorless, emits a pungent choking smell, has a sour taste, and is corrosive. It can cause blisters on skin upon contact.

HCl reacts with metals like calcium (Ca) and magnesium (Mg) to produce their respective chlorides (CaCl₂, MgCl₂) and hydrogen gas (H₂).

HCl is an acidic solution that reacts with metals to release hydrogen gas and forms corresponding metal chlorides.

Sulfuric acid ($H_2SO_4$) is used as a drying agent in the preparation of hydrogen chloride gas (HCl).

Hydrogen chloride gas (HCl) is denser than air, so it is collected by upward displacement of air. This means the gas is collected in a container by pushing the lighter air out.

Sodium chloride (NaCl) reacts with sulfuric acid ($H_2SO_4$) to produce sodium hydrogen sulfate ($NaHSO_4$) and hydrogen chloride gas (HCl).

The reaction between sodium chloride (NaCl) and sulfuric acid ($H_2SO_4$) to produce hydrogen chloride (HCl) takes place in two steps:

1. $NaCl + H_2SO_4 → NaHSO_4 + HCl$
2. $NaHSO_4 + NaCl → Na2SO4 + HCl$