Question detail
In Test for hydrogen, which answer best matches the evidence for hydrogen gas?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Identification of common gases
Question
- A. A squeaky pop is heard when a lighted splint is introduced.
- B. The gas relights a glowing splint.
- C. The gas turns limewater milky.
- D. The gas bleaches damp litmus paper.
Answer
The correct answer is The gas relights a glowing splint.. It matches hydrogen gas because the evidence is lighted splint and the expected result is squeaky pop.
Explanation
The correct option is The gas relights a glowing splint.. This is correct because lighted splint is the evidence expected for hydrogen gas, and squeaky pop is the result that supports the conclusion. Other options are weaker when they confuse gas tests, flame colours, ion-test precipitates, chromatography evidence, or pure-substance/formulation wording.
Common mistake
Hydrogen Test Recall
Students often confuse the sound of hydrogen burning with a squeaky pop with other gas tests.
Focus on the specific characteristic of hydrogen, which is the distinct squeaky pop sound when ignited.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.