Chemistry Flashcards

Front

Why do bromides and iodides not respond to Chrolmyl chloride test?

Back

Bromides and iodides do not respond to Chrolmyl chloride test because they do not form the corresponding chloro complexes that are detectable in this test.

Front

Why can the original solution not be prepared in concentrated HNO3?

Back

The original solution cannot be prepared in concentrated HNO3 because concentrated nitric acid can lead to the oxidation of certain compounds, altering their chemical structure and preventing the desired reaction.

Front

Write the test for nitrates. What does the brown ring in nitrates signify?

Back

carbon dioxide and sulphur dioxide, both of them turn lime water milky. How will you distinguish the two?

Front

• Which reagents are commonly used for the preliminary group classification of anions?

Back

Explain the difference in the confirmatory tests for chloride, bromide, and iodide using silver nitrate.

Front

Why does the solubility of the precipitate formed during anion analysis differ in dilute and concentrated acids? Give examples for such cases.

Back

Why is freshly prepared ferrous sulfate solution used in the brown ring test for nitrates? What would happen if the solution is not fresh?