EASY
11th CBSE
IMPORTANT
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Arrange the following metals in increasing order of reactivity. Which one will be the strongest reducing agent and which is the weakest? Mg, Na, Ag, Cu, Fe, Zn

Important Questions on Redox Reactions

MEDIUM
11th CBSE
IMPORTANT
Explain the term reducing agent in terms of oxidation number. Give two examples to illustrate the answer. 
HARD
11th CBSE
IMPORTANT
What is an electrochemical cell? Briefly discuss its construction and working. How is it represented?
HARD
11th CBSE
IMPORTANT
What is electrochemical series? How does it help us in comparing the oxidizing and reducing power of different elements.
EASY
11th CBSE
IMPORTANT
What is electrochemical series? How does it help us predicting whether a metal will react with a mineral acid to give hydrogen gas or not?
MEDIUM
11th CBSE
IMPORTANT

Oxidation states of P in H4P2O5, H4P2O6, H4P2O7 are respectively

EASY
11th CBSE
IMPORTANT
The correct order of N compounds in its decreasing order of oxidation states is 
EASY
11th CBSE
IMPORTANT
In which of the following compounds, nitrogen exhibits highest oxidation state?
EASY
11th CBSE
IMPORTANT
Which of the following statements is correct?