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10 Inorganic Chemistry Questions | Chemistry Trivia Quiz

Inorganic Chemistry has its own right to glory. This quiz is meant for those who have had at least a Freshman's course.

A multiple-choice quiz by sanjith. Estimated time: 5 mins.

Author
sanjith

Time
5 mins

Type
Multiple Choice

Quiz #
76,935

Updated
Dec 03 21

# Qns
10

Difficulty
Very Difficult

Avg Score
3 / 10

Plays
3767

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Which of the following is an ore of Lead? Hint

Garnierite

Cerrusite

Pentlandite

Nicolite

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Question 2 of 10

2. Desilverization of lead is done by Hint

Parke's process

Claude's process

MacArthur Forrest Cyanide Process

Bosch Process

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Question 3 of 10

3. Which of the following cannot form pentahalides? Hint

Phosphorus

Antimony

Arsenic

Nitrogen

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Question 4 of 10

4. Which of the following terms is often used to describe the structure of hydrogen peroxide? Hint

Open book

Door hinge

Peeled Banana

Leonine

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Question 5 of 10

5. Thenard's Blue is associated with Hint

Zinc

Copper

Magnesium

Aluminium

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Question 6 of 10

6. Calcium cyanamide on hydrolysis with water gives Hint

Calcium hydroxide and cyanic acid

calcium hydroxide and ammonia

Calcium cyanide and ammonia

Calcium carbonate and ammonia

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Question 7 of 10

7. The ammonium salt which does not liberate ammonia on heating is Hint

Ammonium nitrate

Ammonium chloride

Ammonium sulphate

Ammnoium carbonate

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Question 8 of 10

8. The naturally radioactive halogen is

Answer: (One Word)

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Question 9 of 10

9. In 1986,Mathias prepared a ceramic Lanthanum Barium copper oxide.At what temperature does this behave as a superconductor? Hint

73K

23K

35K

75K

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Question 10 of 10

10. Pick out the actinide Hint

Holmium

Erbium

Cerium

Plutonium

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Quiz Answer Key and Fun Facts

1. Which of the following is an ore of Lead?

Answer: Cerrusite

The rest are ores of Nickel. Cerrusite is lead carbonate. However,the chief ore of lead is galena-a sulphide ore. Lead can be extracted from galena by self reduction or carbon reduction process.

2. Desilverization of lead is done by

Answer: Parke's process

Parke's process and Pattinson's process are two common methods to desilverize lead. Purification is done by cupellation.

3. Which of the following cannot form pentahalides?

Answer: Nitrogen

Nitrogen cannot form pentahalides as it cannot expand its valence shell due to non availability of d orbitals.

4. Which of the following terms is often used to describe the structure of hydrogen peroxide?

Answer: Open book

Hydrogen peroxide has a structure with its constituent elements forming a shape similar to that of an open book. Banana structure is that of diborane.

5. Thenard's Blue is associated with

Answer: Aluminium

Aluminium salts give a blue ash in the cobalt nitrate test. When heated with cobalt nitrate and conc.nitric acid,they yield the characteristic bluish ash.

6. Calcium cyanamide on hydrolysis with water gives

Answer: Calcium carbonate and ammonia

This is of use in the fertilizer industry.

7. The ammonium salt which does not liberate ammonia on heating is

Answer: Ammonium nitrate

Ammonium nitrate,ammonium dichromate and ammonium nitrite liberate nitrous oxide,nitrogen and nitrogen respectively on heating.

8. The naturally radioactive halogen is

Answer: Astatine

Astatine is a halogen and is naturally radioactive as it has an atomic number greater than 82.

9. In 1986,Mathias prepared a ceramic Lanthanum Barium copper oxide.At what temperature does this behave as a superconductor?

Answer: 35K

This was a revolutionary discovery in the field of superconductivity.For a long time,people were stuck at 23K transition temperature.This was a good step forward in the direction of room temperature superconductivity(yet to be realized).

10. Pick out the actinide

Answer: Plutonium

The rest are lanthanides.Actinides are elements with atomic numbers in the range 89-103.(Actinium to Lawrencium).

Source: Author sanjith

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