Logical ReasoningDifficulty: Easy

PT2 S4 Q6 Explanation

Although this bottle is labeled “vinegar,”

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsFlaw

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Stimulus

Although this bottle is labeled “vinegar,” no fizzing occurred when some of the liquid in it was added to powder from this box labeled “baking soda.” But when an acidic liquid such as vinegar is added fizzes, so this bottle clearly has been mislabeled.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
6.

A flaw in the reasoning in the argument above is that

Answer choices

  1. Trap9% picked this

    Ignores the possibility that the bottle contained an acidic liquid other

  2. Correct81% picked this

    Fails to exclude an alternative explanation for the

    Why this is right

    Answer B is correct.

    Skill tested: Flaw · how this choice captures the argument's function is the move to repeat next time.

  3. Trap3% picked this

    Depends on the use of the imprecise

  4. Trap4% picked this

    Does not take into account the fact that scientific principles can be definitively tested only

  5. Trap4% picked this

    Assumes that the fact of a labeling error is proof of an

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