Question

Which of the following is the strongest reducing agent?

Solution

Correct option is

H2S

Amongst these, H2S has the greatest value of standard oxidation potential (Eo= – 0.14 V), hence it is strongest reducing agent.

SIMILAR QUESTIONS

Q1

Which of the following not a reducing agent?

Q2

Amongst the following which can act an oxidizing as well as reducing agent?

Q3

 

How many moles of oxalic acid are oxidised  by one mole of

KMnO4 in acid medium?

Q4

Phosphorous has the oxidation state of +1 in

Q5

The oxidation number of S in 

Q6

Oxidation number of chlorine atom in CaOCl2 are

Q7

1 mol of N2 H4 loses 10 mol of electrons to form a new compound X. Assuming that all the nitrogen appears in the new compound and no change in the oxidation state of hydrogen, the oxidation number in X is

Q8

In which of the following compounds the oxidation number of carbon is not zero?

Q9

When ethane is  burnt in presence of excess of oxygen, the oxidation number of carbon changes by

Q10

In a reaction, 3mol of electrons are gained by 1 mol of HNO3. Assuming no change in oxidation state of hydrogen the possible product obtained due to reduction will be