19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Xenon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of xenon in X is (JIPMER 2018)
Sulphur dioxide reacts with chlorine in the presence of charcoal (which acts as a catalyst) to give
In which on of the following arrangements the given sequence is not strictly according to the properties Indicated against it? (NEET 2021)
Urea reacts with water to form A which will decomposes to form B. B when passed through Cu2+ (aq), deep blue color solution C is formed. What is the formula of C from the following. (NEET 2020)
In which of the following, oxidation state of phosphorus is +3? (JIPMER 2019)
Which of the following oxoacids of phosphorus has strongest reducing property? (NEET (Odisha)2019)
A compound ‘X’ upon reaction with H2O produced a colourless gas ‘Y’ with rotten fish smell. Gas ‘Y’ is absorbed in a solution of CuSO4 to give Cu3P2 as one of the products. Predict the compound ‘X’ (NEET (Odisha)2019)
Identify the incorrect statement related to PCl5 from the following: (NEET 2019)
Which of the following rare gas is the abundant in air? (JIPMER 2019)
Which of the following is the increasing order of enthalpy of vaporization?
The species that is not hydrolysed in water is (KCET 2014)
The statement that is not correct is (KCET 2014)
Bleaching powder loses its power on keeping for a long time because (KCET 2013)
The compound represents phosgene is (Manipal 2013)
The increases order of reducing power of halogen acid is (Manipal 2013)
Aqueous solutions of hydrogen sulphide and sulphur- dioxide when mixed together, yield (KCET 2013)
The correct order of relative acidity is (UP CPMT 2013)
Which one among the following is the most powerful oxidizing agent?
Which of the following halogens has only one oxidation state of –1 in an aqueous solution?
Which of the following elements can have both positive and negative oxidation states?
A gas that cannot be collected over water is
Standard sodium thiosulphate solution is used in the estimation of iodine present in a solution. The equivalent weight of sodium thiosulphate which is required to make the standard solution is
H2S turns an acidified KMnO4 solution
H2S turns an acidified K2Cr2O7 solution
Which of the following statements is correct for sulphur?