MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
umesh kumar singh Grade: 12
        

important question of redox reaction with answer for aieee 2010

7 years ago

Answers : (1)

Suraj Prasad
IIT Patna
askIITians Faculty
278 Points
										Three reactions involvingH2PO-4 are given below :

(i) H3PO4

+ H2O ® H3O+ + H PO-

(ii) H PO-

+ H2O ® HPO2

- + H3O+



2

4

2

4

4



(iii) H2PO-4 + OH- ® H3PO4 + O2-


In which of the above does H2PO-4 act as an acid ?



(1) (ii) only



(2) (i) and (ii)

(3) (iii) only

(4) (i) only



(1)

















Sol :

(i)

H PO

4

+ H ® H O+ + H PO-









3

2

3

2

4









acid





conjugate base







(ii)

H PO-

+ H2O ® HPO-2



+ H O+









2

4



4



3









acid





conjugate base









(iii) H PO-

+ OH-

® H PO

4

+ O–2









2

4

acid

3











acid



conjugate acid





















Only in reaction (ii) H2PO-4 acids as ‘acid’.
2 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details