Home
Class 10
CHEMISTRY
Iron when dipped in conc. HNO3 becomes ...

Iron when dipped in conc. `HNO_3` becomes chemically inert . Give reason .

Text Solution

Verified by Experts

When iron is dipped in conc. `HNO_3` , it becomes chemically passive or inet due to the formation of a layer of iron oxide `(Fe_2O_3)` on its surface .
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWERS ( SHORT ANSWERS )|17 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWERS ( LONG ANSWERS )|13 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWERS ( ANSWER IN A WORD )|6 Videos

  • HALF YEARLY MODEL QUESTION PAPER

    SURA PUBLICATION|Exercise Subjective Questions|12 Videos

  • SOLUTIONS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWERS ( HIGHER ORDER THINKING SKILLS (HOTS ) ):|1 Videos

Similar Questions

Explore conceptually related problems

Noble gases are chemically inert. Give reasons.

Assertion (A) : When iron is dipped in conc HNO_(3) , it becomes chemically inert (or) passive. (R): Iron becomes passive when treated with nitric acid is due to the formation of a layer of iron oxide Fe_(3)O_(4) on its surface.

Knowledge Check

  • Glycerol when heated with conc. H_(2)SO_(4) gives

    A
    allyl alcohol
    B
    propyl alcohol
    C
    acrolein
    D
    propylene

  • When copper is heated with conc HNO_3 it produces:

    A
    `Cu(NO_3)_2 , ` NO and `NO_2`
    B
    `Cu(NO_3)_2 ` and `N_2O`
    C
    `Cu(NO_3)_2` and `NO_2`
    D
    `Cu(NO_3)_2` and NO

  • Assertion (A) : Nitrogen gas is chemically inert. Reason (R ) : Nitrogen has low bonding energy.

    A
    A are R are correct and R explains A
    B
    A and R are correct but doesn't explains A
    C
    A is correct but R is wrong
    D
    A is wrong but R is correct

    • Similar Questions

    Explore conceptually related problems

    Zn+ "Conc." HNO_(3) rarr

    Alkali metals exhibit high chemical reactivity Give reason.

    Glucose when oxidised with con. HNO_(3) , give ………..

    The diffraction pattern becomes invisible when the slit is very wide. Give reason.

    Acetyl chloride fumes when exposed to air. Give reason.

    Home
    Profile