19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
+3 oxidation state is most common in
Oxidation number of iodide in IO ,IO ,KI and I respectively, are
When sulfur dioxide is passed in an acidified K2Cr2O7 solution, the oxidation state of sulfur is changed from
The oxidation states of iodine in HIO4, H3IO5 and H5IO6 respectively, are
The oxidant which cannot act as a reducing agent is
An element that never has a positive oxidation state in any of its
The oxidation number S in Na2S4O6 is
The oxidation number of P in Mg2P2O7 is
The oxidation number of Pr in Pr6O11 is
Oxidation number of Cl in CaOCl2 (bleaching powder) is
Nitrogen show different oxidation states in the range
The oxidation number of carbon in CH2Cl2 is
The oxidation number of xenon is XeOF2 is
The oxidation number of nitrogen in NaNO2 is
The oxidation state of chromium in Cr(CO)6 is:
Oxidation number of nitrogen in (NH4)2SO4 is
In the following equation MnO2 acts as MnO 2H O 2e MnO 4OH ->
Assertion (A): SO2 and Cl2 are both bleaching agents Reason (R): Both are reducing agents
Assertion (A): H2O2 can acts as an oxidizing agent. Reason (R): All the peroxides behave as oxidizing agents only.
In the reaction 2FeCl H S 2FeCl 2HCl S ->
In the reaction 3Br 6CO 3H O 5Br BrO 6HCO ->
In the reaction o 5 2 3Cl 6NaOH Na ClO 5Na Cl 3H O -> The element which loses as well as gains electrons is
In an organic compound, C 68.5% and H 4.91% . Which empirical formula is correct for it? (CPMT 2009) (a) C H (b) C H O (c) C H O (d) C H O Ans. (b) Sol. Element At. Percent No. of Simple molar wt. composition moles …
CHO and CH3CHO can be distinguished by
HCOOH and HCHO may be distinguished by