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Quiz about Elementary Chemistry 3
Quiz about Elementary Chemistry 3

Elementary Chemistry 3 Trivia Quiz


Well let's check how much you know about compounds, elements and acids.

A multiple-choice quiz by ABHILASHA40. Estimated time: 3 mins.
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Author
ABHILASHA40
Time
3 mins
Type
Multiple Choice
Quiz #
368,490
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
7 / 10
Plays
457
-
Question 1 of 10
1. Which of the following is classed as a strong acid? Hint


Question 2 of 10
2. Which compound is also known as sal ammoniac? Hint


Question 3 of 10
3. Which acid is also known as muriatic acid? Hint


Question 4 of 10
4. Which of the following is an example of a hydracid? Hint


Question 5 of 10
5. Which of the metals listed is the densest? Hint


Question 6 of 10
6. Which of the following is a weak mineral acid? Hint


Question 7 of 10
7. Which of these elements can be found in free state? Hint


Question 8 of 10
8. Which of the following is a common name of ethanol? Hint


Question 9 of 10
9. Which metal has the highest melting point? Hint


Question 10 of 10
10. Which among the following metals has the lowest melting point? Hint



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Quiz Answer Key and Fun Facts
1. Which of the following is classed as a strong acid?

Answer: Sulphuric acid

Out of these acids, sulphuric acid is the strongest acid. It is strong because it forms more ions when dissolved in water in comparison to other acids. Sulphuric acid is also known as the king of acids.
2. Which compound is also known as sal ammoniac?

Answer: Ammonium chloride

Ammonium chloride is also known as sal ammoniac. It is a white coloured crystalline compound which is used in dry cells and in electroplating of utensils.
3. Which acid is also known as muriatic acid?

Answer: Hydrochloric acid

Hydrochloric acid (HCl) was historically known as muriatic acid. HCl is naturally present in the gastric juices of the human stomach where it kills germs and provides an acidic medium to assist in food digestion.
4. Which of the following is an example of a hydracid?

Answer: Hydrochloric acid

Hydrochloric acid is an example of a hydracid because it contains hydrogen with other non metallic element but not oxygen. Other acids, like sulphuric acid, contain both oxygen and hydrogen so they are called oxyacids.
5. Which of the metals listed is the densest?

Answer: Osmium

Osmium is often cited as the densest metal, although iridium is very close. Osmium has a density about 22000kg/m^3 which is nearly three times more than the density of iron.
6. Which of the following is a weak mineral acid?

Answer: Carbonic acid

Carbonic acid is formed by carbon dioxide dissolving in water and is a component of human blood. It is also found in drinks such as champagne and can also be a component of rain water.
7. Which of these elements can be found in free state?

Answer: Silver

Silver is a less reactive metal which does not usually react with other elements. So silver can be found in free state but sodium, calcium and potassium are highly reactive metals and hence cannot exist in free state. They can be found in the form of carbonates, chlorides, sulphates etc.
8. Which of the following is a common name of ethanol?

Answer: Absolute alcohol

Ethanol is also known as absolute alcohol. This alcohol is 100% pure and anyhydrated. Ethanol is highly flammable, volatile and is colourless.
9. Which metal has the highest melting point?

Answer: Tungsten

Tungsten has the highest melting point among these metals. Its melting point is nearly 3500°C. It is used as filaments in bulbs and on burning it gives white light.
10. Which among the following metals has the lowest melting point?

Answer: Cesium

Cesium is the metal with the lowest melting point of just 27°C. Metals like iron have melting points generally near to 1000°C to 1500°C. Cesium is sometimes also classified as a liquid metal due to its low melting point. It is also the most reactive metal.
Source: Author ABHILASHA40

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