- 1(current)
Q. No.In acidic medium, H2O2 changes Cr2O7–2 to CrO5 which has two (–O – O–) bonds.
The oxidation state of Cr in CrO5 is:
1. +5
2. +3
3. +6
4. -10
Subtopic: Chemistry of Mn and Cr Compounds |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyConsidering the following reaction,
3 MnO 42– + 2 H 2 O ⇌ 2 MnO 4– + MnO 2 + 4 OH–
The reagent that facilitates the removal of OH– ions to ensure the completion of the conversion of K2MnO4 to KMnO4 is:
1. KOH
2. CO2
3. SO2
4. HCl
3 MnO 42– + 2 H 2 O ⇌ 2 MnO 4– + MnO 2 + 4 OH–
The reagent that facilitates the removal of OH– ions to ensure the completion of the conversion of K2MnO4 to KMnO4 is:
1. KOH
2. CO2
3. SO2
4. HCl
Subtopic: Chemistry of Mn and Cr Compounds |
To view explanation, please take trial in the course below.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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