The correct order of reduction potentials of the following pairs is
A. Cl2/Cl$$-$$
B. I2/I$$-$$
C. Ag+/Ag
D. Na+/Na
E. Li+/Li
Choose the correct answer from the options given below.
The number of bridged oxygen atoms present in compound B formed from the following reactions is
Pb(NO3)2 $$\buildrel {673\,K} \over \longrightarrow $$ A + PbO + O2
A $$\buildrel {Dimerise} \over \longrightarrow $$ B
The metal ion (in gaseous state) with lowest spin-only magnetic moment value is :
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Polluted water may have a value of BOD of the order of 17 ppm.
Reason R : BOD is a measure of oxygen required to oxidise both the bio-degradable an non-biodegradable organic material in water.
In the light of the above statements, choose the most appropriate answer from the options given below.