JEE · NEET Previous Year Question
Which of the following statement is incorrect?
Topic: JEE PYQ
Answer: D. Full step-by-step solution below.
- A salts are oxidising agents.
- Bsalts are reducing agents.
- C salts are better oxidising agents.
- D salts are better oxidising agents.
Correct answer: D
Solution
(d)(a) in +1 oxidation state is more stable than +3 oxidation state because of inert pair effect therefore salts are oxidising agents.
(b) is a reducing agent because it is more stable in +3 O.S.
(c) is more stable than hence is an oxidising agent.
(d) (Less stable) Thus, As cannot be reduced easily hence, it is not a good oxidising agent.
An oxidising agent is defined as substance whose oxidation number decreases while reducing agent defined as substance whose oxidation number increases.