Solubility Experiment

Q. Differences between organic and inorganic solvents.

Q. Write equation for:
The reaction of chlorine with excess of ammonia.

Q.

Why during the preparation of ammonia the flask in which it is being prepared is tilted?

Q.

Ammonia gas is collected in an inverted gas jar by the __(upward/downward) displacement of air.

Q. To remove air bubbles in a glass which of the following substance is added to the glass and heated slowly.

1. Aluminium powder
2. Borax
3. Silica
4. Calcium hydroxide

Q.

(a) (i) Name the experiment illustrated below. (ii) State the colour of the water that has entered the round-bottomed flask.
(b) What property of hydrogen chloride is demonstrated when it is collected by downward delivery (upward displacement) ?

Q.

HCl gas is highly soluble in water.

1. False

2. True

Q.

What property of hydrogen chloride is demonstrated when it is collected by upward displacement of air?

1. HCl gas is lighter than air

2. HCl gas is heavier than air.

3. Non-polar nature of hydrogen chloride gas

4. None of these

Q.

Name the experiment illustrated above.
Which property of hydrogen chloride is demonstrated by this experiment?

Q.

Hydrogen chloride gas is collected by

1. Upward displacement of water

2. Downward displacement of air

3. Downward displacement of water

4. Upward displacement of air

Q. How will you demonstrate the solubility of ammonia in water? Explain.

Q. The diagram shows a simple arrangement of the fountain experiment:


(i) Name the two gases you have studied which can be used in this experiment.
(ii) What is the common property demonstrated by this experiment?

Q. Write the equation for the formation of ammonia by the action of water on magnesium nitride.

Q.

Why does excess of bubbles come out when the cap of a cola drink is opened?

Q.

(a) Is ammonia more dense or less dense than air ?

(b) What property of ammonia is demonstrated by the Fountain Experiment ?

(c) Write the balanced equation for the reaction between ammonia and sulphuric acid.

Q.

An aqueous solution of ammonia is prepared by dissolving ammonia in water.

1. True

2. False

Q. What is meant by empirical formula

Q. Is ammonia denser than air? Which property of ammonia is demonstrated by the Fountain experiment? Write the balanced equation for the reaction between ammonia and sulphuric acid.

Q. The Ammonia fountain experiment demonstrates the high solubility of Ammonia. State True or False.

1. True
2. False

Q. When Mr. Haber was creating Ammonia, he had a big problem. He couldn't get his catalyst which worked on adsorption to work efficiently. He had to use too many expensive iron blocks.
One day his student replaced them with fine iron powder. It worked miraculously better.
What made the difference?

1. Iron powder was more stable under pressure
2. The blocks were sonorous, but powder was not.
3. The powder had exponentially more surface area
4. The powder had less entropy.

Q.

Among the following experiments which one is used for demonstrating solubility of hydrogen chloride in water?

1. Millikan's Oil Drop Experiment
2. Fountain Experiment
3. Litmus Test
4. Ostwald's Process

Q.

Which of the following solvent will not dissociate HCl into free ions ?

1. Methanol

2. Toluene

3. Ethanol

4. Water

Q.

Which is more denser- Ammonia or Hydrogen chloride?

Q.

The ammonia fountain experiment demonstrates the high solubility of Ammonia.

1. False

2. True

Q.

Both ${\mathrm{CO}}_2$ and ${\mathrm{H}}_2$ gases are:

1. Heavier than air

2. Acidic in nature

3. Colorless

4. Soluble in water

Q.

The ammonia fountain experiment demonstrates the high solubility of ammonia. State True or False.

1. True

2. False

Q. Among the following experiments which one is used for demonstrating solubility of hydrogen chloride in water?

1. Millikan's Oil Drop Experiment
2. Fountain Experiment
3. Litmus Test
4. Ostwald's Process

Q.

Which of the following solvent will not dissociate HCl into free ions ?

1. Water

2. Methanol

3. Toluene

4. Ethanol

Q. Is ammonia more dense or less dense than air ?

Q.

Among the following experiments which one is used for demonstrating solubility of hydrogen chloride in water?

1. Millikan's Oil Drop Experiment
2. Fountain Experiment
3. Litmus Test
4. Ostwald's Process