Pure concentrated $HNO_3$ makes iron passive as the surface is covered with a protective layer of:
- A$Fe_2O_3$
- B$FeO$
- C$Fe_3O_4$
- D$Fe(NO_3)_3$
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View SolutionMatch List $I$ with List $II$:
List $I$ Oxide List $II$ Type of Bond $A. N_2O_4$ $I. 1 N-O$ bond $B. NO_2$ $II. 1 N-O-N$ bond $C. N_2O_5$ $III. 1 N-N$ bond $D. N_2O$ $IV. 1 N=N / N\equiv N$ bond
Choose the correct answer from the options given below:
| List $I$ Oxide | List $II$ Type of Bond |
| $A. N_2O_4$ | $I. 1 N-O$ bond |
| $B. NO_2$ | $II. 1 N-O-N$ bond |
| $C. N_2O_5$ | $III. 1 N-N$ bond |
| $D. N_2O$ | $IV. 1 N=N / N\equiv N$ bond |
Choose the correct answer from the options given below:
Nitrogen $(I)$ oxide is produced by
Among the following compounds,the one which does not produce nitrogen gas upon heating is
DifficultKVPY 2017
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