Among `Fe^(2+) and Cr^(2+)`, which is stronger reductant? Why? 

Yarn is stronger than fibre why?

The standard reduction potentials at 298 K for the following half cell reactions are given below Zn^(2+) (aq) + 2e^(-) to Zn (s)-0.762 Cr^(3+) (aq) + 3e^(-) to Cr (s)-0.740 2H^(+) (aq) + 2e^(-) to H_(2) (g)-0.000 Fe^(3+) (aq) + e^(-) to Fe^(3+) (aq)-0.770 Which one is the strongest reducing agent?

Among ferrous and ferric ions, which one is more stable? Why?

Among the ions, O_(2)N CH_(2)CH_(2)O^(-) and CH_(3) CH_(2)O^(-) , which is more stable ? Why?

For two redox couple A^(2+)//A and B^(2)//B the reduction potential values are -1.28V and +0.34V. Which is a strong reduction agent? Can both of them displace H_(2) from dilute hydro chloric acid? Why?

Among chloroacetic acid and acetic , which is more acidic. Why ?

In aqueous solutions lithium is best reductant. Why?

Sn^(2+) and Fe^(3+) cannot coexist in the same solution. Why?

Among ethylamine and ammonia , which is more basic. Why ?