Chemistry - Salt Analysis Question with Solution | TestHub
ChemistrySalt AnalysisMiscellaneous/MixedMedium2 minQB
ChemistryMediummultiple choice
Passage / Comprehension
H₂SO₄ and HNO₃ are important analytical reagents. These reagents act as strong acids and oxidizing agents. H₂SO₄ is also used in a number of dehydration reactions.
Which of the following reaction(s) form gas :
Options:(select one or more)
Answer:
B, C, D
Solution:
Based on the reactions shown, here is the solution:
Au + conc. HNO₃: Gold is a noble metal and does not react with concentrated nitric acid alone; it requires aqua regia.
S + conc. HNO₃: Sulfur is oxidized to H₂SO₄, and the concentrated acid is reduced to NO₂ gas.
Zn + conc. HNO₃: Zinc reacts with concentrated nitric acid to produce zinc nitrate and NO₂ gas.
Ag + conc. HNO₃: Silver reacts with concentrated nitric acid to form silver nitrate and NO₂ gas.
Thus, reactions (B), (C), and (D) all form NO₂ gas.
Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: QB
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