MCQ
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
- Asodium-ammonia complex
- Bsodamide
- Csodium ion-ammonia complex
- ✓ammoniated electrons
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(At. nos. $Cr = 24, Mn = 25, Fe = 26, Co = 27$)
Assertion $A$: Permanganate titrations are not performed in presence of hydrochloric acid.
Reason $R$ : Chlorine is formed as a consequence of oxidation of hydrochloric acid.
In the light of the above statements, choose the correct answer from the options given below.
Reason : Grignard reagents react with hydroxyl group