Search Colleges, Courses, Exams, Questions and Articles

Ask a query on 8879100846 Ask Login | Sign Up

 

 

› Ask & Answer › Question

Explain redox reactions on the basis of electron transfer. Give suitable examples.

0 3 Views | Posted 4 months ago
Asked by Shiksha User

  • 1 Answer

  • A

    Answered by

    alok kumar singh | Contributor-Level 10

    4 months ago

    This is a Long answer type question as classified in NCERT Exemplar

    The given reaction is a redox change. 

    2Na (s)+H2 (g)→2NaH (s)   

    The half reaction is:

    2Na (s)→2Na+ (g)+2e-

    The other half reaction is:

    H2 (g)+2e-→2H- (g)

    This splitting of the reaction into two half-reactions automatically reveals here that sodium is oxidized, and hydrogen is reduced. Any substance which loses electron is oxidized and gains electron is reduced hence is the case of sodium and hydrogen atoms respectively. Hence, the complete reaction is a redox change.

Similar Questions for you

How many of these compounds will undergo disproportionation on hydrolysis? CO?, NO?, Cl?, F?, ClO?, Cl?O?, N?O?, SO?, P?O??
R
Raj Pandey

2 N O 2 + 4 + H 2 O → H N O 2 + 3 + H N O + 5 3

C l 2 0 + H 2 O → H C l - 1 + H O C l

2 C l O 2 + 4 + H 2 O → H C l O 2 + 3 + H C l O 3 + 5

C l 2 + 6 O 6 + H 2 O → H C l O 3 + 5 + C l O 4 + + +

40. Best reducing agent is:
(a) He              (b) Be           (c) Li            (d) Al
V
Vishal Baghel

Kindly go through the solution

(c) Li

37. Which element is considered to have oxidation number of +3 in all its compounds?

(a) Be              (b) Li             (c) Al         (d) Sc
V
Vishal Baghel

Kindly go through the solution

(c) Al

36. Oxidation number ofS in S2O8-2 is

(a) -2           (b) -6           (c) +2          (d) +6
V
Vishal Baghel

Kindly go through the solution

(d) +6

32. Assertion: Na+ ion has an oxidation number of +1, Mg2+ ion, +2, Fe3+ ion, +3, Cl– ion, –1, O2– ion, –2; and so on.

Reason: For ions composed of only one atom, the oxidation number is equal to the charge on the ion.
V
Vishal Baghel

Kindly go through the solution

(a)

Get authentic answers from experts, students and alumni that you won't find anywhere else

Sign Up on Shiksha

On Shiksha, get access to

  • 65k Colleges
  • 1.2k Exams
  • 687k Reviews
  • 1800k Answers

Learn more about...

Share Your College Life Experience

Write a Review

Didn't find the answer you were looking for?

Search from Shiksha's 1 lakh+ Topics

or

Ask Current Students, Alumni & our Experts

Ask Now
Community GuidelinesUser Points System
QuestionsDiscussionsTags
×

This website uses Cookies and related technologies for the site to function correctly and securely, improve & personalise your browsing experience, analyse traffic, and support our marketing efforts and serve the Core Purpose. By continuing to browse the site, you agree to Privacy Policy and Cookie Policy.

Need guidance on career and education? Ask our experts

Characters 0/140

The Answer must contain atleast 20 characters.

Add more details

Characters 0/300

The Answer must contain atleast 20 characters.

Keep it short & simple. Type complete word. Avoid abusive language. Next

Your Question

Edit

Add relevant tags to get quick responses. Cancel Post