Home
Class 12
CHEMISTRY
Justify that the reaction : 2Na (s)+H(2)...

Justify that the reaction : `2Na (s)+H_(2)(g)rarr2NaH(s)` is a redo reaction

Text Solution

Verified by Experts

Since NaH is an ionnic compound it may be represented a `Na^(+)H^(-)`(s) thus
`2Na(s)+H_(2)(g)rarr2Na^(+)H^(-)(s)`
this reactoin can be split up into the followng two half reaction
`Na(s)rarrNa^(+)+e^(-)]xx2`
`H_(2)(g)+2e^(-)rarr2H^(-)`
overall redox reaction `2Na(s)+H_(2)(g)rarr2Na^(+)H^(-)(s)`
In the first half rection Na is oxiised to `Na^(+)` ion while in the second half reaction `H_(2)` is reduced to `H^(-)` ions therefore the overall reaction is a redox change
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    PRADEEP|Exercise NCERT(EXERCISE)|30 Videos

  • REDOX REACTIONS

    PRADEEP|Exercise NCERT(EXEMPLAR PROBLEMS WITH ANSERS HINTS AND SOLUTION-I)|11 Videos

  • REDOX REACTIONS

    PRADEEP|Exercise Conceptual Question|19 Videos

  • POLYMERS

    PRADEEP|Exercise IMPORTANT Questions (For Board Examination)|27 Videos

  • SOLUTIONS

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|31 Videos

Similar Questions

Explore conceptually related problems

Justify that the reaction : H_(2)O(s) + F_(2) rarr HF + HOF is a redox reaction

In the reaction. H_(2)S+H_(2)O_(2) rarr S+2H_(2)O

Split the reaction 2 K (s) + C1_(2) (g) rarr 2 KCl (s) into oxidation and reduction half reactions.

On the basis of electronic conbept, justify that the following reaction is a redox reaction 2Na(g)+H_(2)(g)rarr2NaH(s)

In the reaction H_(2)S+NO_(2) rarr H_(2)O+NO+S.H_(2)S is

Justify that the reaction is a redox reaction. " "2Cu_(2)O(s)+Cu_(2)S(s) rarr 6Cu(s)+SO_(2)(g)

Find the heat of reaction 2Na(s) +1//2O_(2)(g) rarr Na_(2)O(s) Given: Na_(2)O(s) +H_(2)Orarr 2NaOH, DeltaH =- 56 kcal 2Na + 2H_(2)O rarr 2NaOh +H_(2),DeltaH =- 88 kcal H_(2) +1//2O_(2)rarr H_(2)O, DeltaH =- 68 kcal