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Odd One Out Flashcards

6 cards from real BARB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Odd One Out flashcards as text

  1. Which is the odd one out? Oxygen, Hydrogen, Carbon, Water, Nitrogen

    Answer: Water

    Water (H₂O) is a compound; all the others are pure chemical elements.

  2. Which is the odd one out? Sword, Spear, Shield, Bow, Dagger

    Answer: Shield

    A shield is a defensive item; all the others are offensive weapons.

  3. Which is the odd one out? Copper, Silver, Gold, Bronze, Platinum

    Answer: Bronze

    Bronze is an alloy (copper + tin); the others are pure precious metals.

  4. Which is the odd one out? Infantry, Cavalry, Artillery, Logistics, Pilot

    Answer: Pilot

    Pilot is an air force role; Infantry, Cavalry, Artillery, and Logistics are all traditional Army branches.

  5. Which is the odd one out? 2, 4, 6, 9, 12

    Answer: 9

    All others are even numbers; 9 is an odd number.

  6. In the BARB Odd One Out subtest, how many words or items are typically shown per question?

    Answer: 5

    Each Odd One Out question presents five items; the candidate identifies the one that does not belong.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. practicequestions.mindmill.co.uk — Exam format · verified Oct 2026
  2. jobs.army.mod.uk — Test delivery, score release · verified Oct 2026