Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockMedium2 minQB

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Which of the following metal(s) gives $NO_{2}$ gas with different concentration of $HNO_{3}$ ?

Options:

Answer:

Solution:

Concentrated nitric acid reacts with most metals to produce NO₂ gas. For example, with zinc:

$Zn + 4 HNO_{3} (co n c .) \to Zn (NO_{3})_{2} + 2 NO_{2} + 2 H_{2} O$

Dilute nitric acid reacts differently, often producing N₂O, NO, or NH₄NO₃ depending on the metal's reactivity and acid concentration. Therefore, only concentrated HNO₃ with Zn gives NO₂.

Stream:JEESubject:ChemistryTopic:Complete d-blockSubtopic:d-block

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