19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
In which of the following arrangements, the order is not strictly according to the property written against it? (AIIMS 2018)
Xenon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of xenon in X is (JIPMER 2018)
A gas ‘X’ is used in filling balloons for meteorological observations. It is also used in gas-cooled nuclear reactors. Here, the gas X is (AIIMS 2018)
Name the gas that can readily decolourise acidified KMnO4 solution. (NEET 2017)
In which of the following compounds, sulphur show maximum oxidation number? (JIPMER 2017)
Among the following compounds, which will produce POCl3 with PCl5? (JIPMER 2017)
Which of the following oxide is most acidic? (JIPMER 2017)
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other? (CBSE AIPMT 2015)
Which of the following is/are correct?
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)
N2 is commercially prepared by
In which on of the following arrangements the given sequence is not strictly according to the properties Indicated against it? (NEET 2021)
What is X and Y in the above reaction? (AIIMS 2019) (Excess) (Excess) 8NH 3Cl X NH 3Cl Y -> ->
Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy? (AIIMS 2019)
Yellow colour of chlorine water fades because of (AIIMS 2019)
Correct order of bond dissociation energy is (AIIMS 2019)
Which of the following statement is correct for oleum? (AIIMS 2019)
Which is the correct order of thermal stability for H2E (E = O, S, Se, Te and Po)? (NEET 2019) (a) H O H S H Se H Te H Po (b) H Po H Te H Se H S H O (c) H Se H Te H Po H O H S (d) H S H O H Se H Te H Po
Among the following, the correct formula of Marshall’s acid is (JIPMER 2018)
Conversion of oxygen into ozone is non-spontaneous at (AIIPMT 2018)