Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A 0.01 M solution of PuO 2 (NO 3 ) 2 was found to have a pH of 4. Then select the INCORRECT option :
A
% hydrolysis of 
= 1 %.
= 1 %.
B
K b for PuO 2 (OH) + = 10 –8 .
C
Hydrolysis is expected to be endothermic.
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
D
+ H 2 O 
PuO 2 (OH) + + H +
t = 0 0.01 0 0
t = eq 0.01(1 – h) 0.01 h 0.01 h
(=10 –4 )
Therefore, h = 0.01 = 1 %. So, 1 – h ≈ 1.
K b of PuO 2 (OH) + = 
= 
= 
= 10 –8 .
Hydrolysis is expected to be endothermic because it is reverse of neutralization (exothermic process).
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