The passivity of iron in concentrated nitric acid is due to
- AFerric nitrate coating on the metal
- BAmmonium nitrate coating on the metal
- C$A$ thin oxide layer coating on the metal
- D$A$ hydride coating on the metal
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Similar Questions
Which of the following is a cyclic phosphate?
Medium
View SolutionThe laughing gas is
Choose the correct statement.
MediumAIIMS 2009
View SolutionIn the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{N}F_3 + H_2O \longrightarrow \text{No reaction}$
$\underline{N}F_3 + H_2O \longrightarrow \text{No reaction}$
Difficult
View SolutionIn case of nitrogen,$NCl_3$ is possible but not $NCl_5$,while in case of phosphorus,$PCl_3$ as well as $PCl_5$ are possible. This is due to:
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