Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Identify the correct statements from the following.
A. In photosynthesis reaction, water is oxidized to oxygen
B. An example for interstitial hydride is 
C. Sodium hexa metaphosphate is used in the removal of permanent hardness of water.
A
B
A & B only
C
B & C only
D
A & C only
Text Solution
Verified by ExpertsThe correct answer is:
D
During photosynthesis 
is oxidised in photo system II with the release of 
, electron and proton at the oxygen - evolving complex.
Sodium hexa metaphosphate is used in calgon process for removing permanent hardness of water 
calgon.
Hardness of 
is due to sulphates or chlorides of 
and 
.
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