Which of the elements show passivity when treated with conc. HNO3? | MCQ Hive

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Q Which of the elements show passivity when treated with conc. HNO3?

A A. Fe
B B. A
C C. Cr
D D. All of the above

Previous Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO…

Next The gas which cannot be dried by conc. H2SO4 ?

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