WikiCards · Card list · Science cards · Ester
Uncommon card · Science
Ester, an Uncommon card
In chemistry, an ester is a compound derived from an acid in which the hydrogen atom of at least one acidic hydroxyl group of that acid is replaced by an organyl group.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 75
- DEF
- 66
- Power
- 141
- Wikipedia reads a year
- 190,000
Power 141 (ATK + DEF): stronger than 75 % of WikiCards cards.
Ester quiz: 3 questions
Three questions on the Ester card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
These compounds contain a ______ functional group.
Answer
distinctive. These compounds contain a distinctive functional group. From the Ester article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Logistics. Logistics 79 · Ester 75 · Epithelium 71 · Rhea 67 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- These compounds contain a distinctive functional group.
- Analogues derived from oxygen replaced by other chalcogens belong to the ester category as well.
- According to some authors, organyl derivatives of acidic hydrogen of other acids are esters as well, but not according to the IUPAC.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Ester article was read about 190,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 75 and blocks with 66: each hit it takes is cut by 26 %.
How to get Ester
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Ester in the power ranking, all domains together.
- EpitheliumUncommon · Science · ATK 71 DEF 70
- MolièreRare · Arts · ATK 75 DEF 66
- Blue cheeseUncommon · Society · ATK 69 DEF 72
- RheaUncommon · Nature · ATK 67 DEF 74
- LogisticsUncommon · Society · ATK 79 DEF 62
- Nissan StadiumUncommon · Society · ATK 75 DEF 66
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
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- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Ester (revision), CC BY-SA 4.0. Photo : Sakurambo, Public domain, Wikimedia Commons.



