1
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
The oxidation states of 'P' in H4P2O7, H4P2O5 and H4P2O6, respectively, are :
2
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II :
Choose the most appropriate answer from the options given below
List - I | List - II | ||
---|---|---|---|
(a) | NaOH | (i) | Acidic |
(b) | $$Be{(OH)_2}$$ | (ii) | Basic |
(c) | $$Ca{(OH)_2}$$ | (iii) | Amphoteric |
(d) | $$B{(OH)_3}$$ | ||
(e) | $$Al{(OH)_3}$$ |
Choose the most appropriate answer from the options given below
3
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Identify the process in which change in the oxidation state is five :
4
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
The oxidation states of nitrogen in NO, NO2, N2O and NO$$_3^ - $$ are in the order of :
Questions Asked from Redox Reactions (MCQ (Single Correct Answer))
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