Hydrogen Chloride Chemistry Quiz

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What happens to hydrogen chloride when it is exposed to air?

It becomes less soluble in water.

It releases white fumes. (correct)

It turns into a solid.

It changes color.

Why should the temperature not exceed 200°C when handling hydrogen chloride?

The gas will spontaneously combust.

Glass apparatus may crack. (correct)

It will become unreactive.

The gas will solidify.

What is the color of hydrogen chloride in its physical state?

Green

Colorless (correct)

Blue

Yellow

What is the boiling point of hydrogen chloride?

-83 °C Signup and view all the answers

What is the smell of hydrogen chloride described as?

Pungent and choking Signup and view all the answers

What happens to HCl gas when heated above 500°C?

It dissociates into hydrogen and chlorine. Signup and view all the answers

How is hydrochloric acid formed?

When hydrochloric gas is dissolved in water. Signup and view all the answers

Which of the following statements is true regarding HCl gas?

It is neither combustible nor supports combustion. Signup and view all the answers

What does the reaction 2HCl + Zn yield?

Zinc chloride and hydrogen gas. Signup and view all the answers

Which metals react with HCl to produce hydrogen gas?

Calcium and zinc. Signup and view all the answers

What is the main reason concentrated nitric acid is avoided in the preparation of HCl?

It may evaporate and mix with HCl. Signup and view all the answers

Why are drying agents like P2O5 and CaO not suitable for purifying HCl gas?

They react with hydrogen chloride. Signup and view all the answers

How is HCl gas typically collected?

By downward delivery. Signup and view all the answers

What chemical reaction indicates that HCl is a product?

NaHSO4 + NaCl $ ightarrow$ Na2SO4 + HCl Signup and view all the answers

Why is HCl not collected by water?

HCl reacts with water. Signup and view all the answers

What is one method to prepare hydrogen chloride (HCl) directly?

Direct combination of hydrogen and chlorine gases Signup and view all the answers

Which chemical reaction produces hydrogen chloride using concentrated sulfuric acid?

NaCl + H₂SO₄ → NaHSO₄ + HCl Signup and view all the answers

Under what condition does the direct combination of hydrogen and chlorine occur to form hydrogen chloride?

In sunlight Signup and view all the answers

Which of the following is NOT a method to produce hydrogen chloride?

Decomposing hydrochloric acid Signup and view all the answers

What is produced when sodium chloride is heated with concentrated sulfuric acid?

Sodium bisulfate and hydrogen chloride Signup and view all the answers

What is the main concept demonstrated by the Fountain Experiment?

The high solubility of HCl gas in water. Signup and view all the answers

What happens to the blue litmus solution when HCl gas is introduced to it?

It turns red, indicating an acidic environment. Signup and view all the answers

What effect does the solubility of HCl gas have on the movement of water in the fountain experiment?

It creates a pressure difference that draws water upward. Signup and view all the answers

What is the visual effect observed in the Fountain Experiment?

A fountain-like rise of water into the gas tube. Signup and view all the answers

Which of the following correctly describes the surrounding air during the Fountain Experiment?

It becomes slightly acidic due to the gas forming droplets. Signup and view all the answers

What are the products of the reaction between hydrochloric acid and sodium hydroxide?

Sodium chloride and water Signup and view all the answers

What is produced when hydrochloric acid reacts with silver nitrate?

Silver chloride and nitric acid Signup and view all the answers

In what way does hydrochloric acid aid in the human body?

It assists in protein digestion Signup and view all the answers

Which of the following is NOT a use of hydrochloric acid?

Digestion of carbohydrates Signup and view all the answers

What happens to the white precipitate of silver chloride in ammonia hydroxide solution?

It dissolves to form a complex salt Signup and view all the answers

What is the primary reason for using a funnel arrangement in HCl acid preparation?

It allows for the gas to dissolve efficiently in water. Signup and view all the answers

Which of the following statements about HCl acid is false?

HCl acid has a sweet taste. Signup and view all the answers

In the reaction of magnesium with HCl, what is produced?

Magnesium chloride and hydrogen gas Signup and view all the answers

Which of the following properties correctly describes the effects of HCl acid on the skin?

HCl acid can cause severe burns and irritation. Signup and view all the answers

What would happen when calcium reacts with hydrogen chloride?

Hydrogen gas and calcium chloride are produced. Signup and view all the answers

Which acid is used in the preparation of hydrogen chloride gas?

Sulfuric acid Signup and view all the answers

What is produced when sodium chloride reacts with sulfuric acid?

Hydrochloric acid Signup and view all the answers

What method is used for the collection of hydrogen chloride gas?

Upward displacement of air Signup and view all the answers

What role does sulfuric acid play in the chemical equations provided?

It is a drying agent. Signup and view all the answers

Which of the following is not a product formed during the preparation of hydrogen chloride gas?

Water Signup and view all the answers