JEE Previous Year Question
The pair(s) of reagents that yield paramagnetic species is/are
Topic: JEE PYQ
Answer: A, B, C. Full step-by-step solution below.
- ANa and excess of
- BK and excess of
- CCu and dilute
- D and 2-ethylanthraquinol
Correct answer: A, B, C
Solution
(a,b,c) Na + (excess) → dilute solution of sodium in liquid(which is paramagnetic)
K + (excess) → ( is paramagnetic)
Cu + dilute → Cu + NO (NO is paramagnetic)
+ 2-ethylanthraquinol → 2-ethylanthraquinone + (Diamagnetic)
Hence Answer is (a), (b), (c)
More s-Block Elements PYQs
- Which of the following metals exist in liquid state during summer season?
- The element playing significant role in neuromuscular function and interneuronal transmission is :
- The hybridisations of -orbitals in and respectively ar…
- The chemical nature of hydrogen peroxide is :
- Assertion : Alkali metals and their salts impart characteristic flame colours. Reason (R): Alkali metals have…