Question detail
For Identification of ions by chemical and spectroscopic means, which option uses the correct Chemical analysis evidence for chemical analysis?
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 ions by chemical and spectroscopic means
Question
- A. Sodium
- B. Lithium
- C. Calcium
- D. Copper
Answer
The correct answer is Lithium. It matches chemical analysis because the evidence is test observation and the expected result is supported conclusion.
Explanation
The correct option is Lithium. This response is stronger than the distractors because it keeps the test, observation, and interpretation in the correct order for chemical analysis. Other options are weaker when they confuse gas tests, flame colours, ion-test precipitates, chromatography evidence, or pure-substance/formulation wording.
Common mistake
Sequence Planning Mistake
Students often fail to consider the order of tests when planning to identify ions in an unknown compound, leading to inconclusive results.
To fix this, students should prioritize tests based on the expected reactivity of ions and ensure that tests do not interfere with each other.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.