EASY
NDA & NA EE
IMPORTANT
Earn 100
An oxidising agent is a substance which
50% studentsanswered this correctly
Important Questions on Oxidation, Reduction and Electrochemistry
MEDIUM
NDA & NA EE
IMPORTANT
When a copper rod is dipped in aqueous silver nitrate solution, the colour of the solution changes to blue. This is because:
MEDIUM
NDA & NA EE
IMPORTANT
Iron nails are dipped into a blue copper sulfate solution. After some time, the iron nails are_____.
EASY
NDA & NA EE
IMPORTANT
Which one among the following metals is more reactive than hydrogen?
HARD
NDA & NA EE
IMPORTANT
Which one among the following is the correct order of the reactivity of the elements?
EASY
NDA & NA EE
IMPORTANT
Aluminium is more reactive than iron, but aluminium is less easily corroded than iron, because
MEDIUM
NDA & NA EE
IMPORTANT
Silverware turns black after some time due to _____.
EASY
NDA & NA EE
IMPORTANT
Which of the following statements is/are true:
I. The process of oxidation leads to the gain of electrons.
II. The process of oxidation leads to the loss of electrons.
III. The process of reduction leads to the gain of electrons.
IV. The process of reduction leads to the loss of electrons.
Select the correct answer from the codes given below.
MEDIUM
NDA & NA EE
IMPORTANT
Which of the following causes the rusting of iron?
I. Oxidation
II. Reduction
III. Chemical reaction with oxygen.
IV. Chemical reaction with .
Select the correct answer from the codes given below.
