JEE Advanced questions
3844 published questions with worked solutions.
- Hydrates of helium and neon have not been prepared because of
- The greater reactivity of F2 is due to
- Inert atmosphere for welding of metals is obtained by
- S − S bond is present in
- Consider the following properties of the noble gases I. They readily form compounds which are colourless II. They generally do...
- "Chlorine-type" laundry bleaches are in reality aqueous solution of
- HClO4, HNO3 and HCl are all very strong acids in aqueous solution. In glacial acetic acid medium, their acid strength is such that
- Consider the following boron halides I. BF3 II. BCl3 III. BBr3 IV. BI3 The Lewis acid characters of these halides are such that
- Oxalic acid on heating with conc. H2SO4 produce
- When an article is bleached by SO2 it loses its colour. The colour can be restored by
- Which of the following atoms has the highest ionization energy?
- Which of the following species have undistorted octahedral structures? I. SF6 II. PF6− III. SiF6²− IV. SeF6 Select the correct...
- Liver of sulphur is a mixture of
- The thermal stability of hydrides of oxygen family is in order
- Which of the following can be used as dehydrating agents?
- Among CH4, NH3 and H2O, acidity of H2O is maximum because
- Consider the following reactions in which atoms have been labelled with isotopes (indicated by *) (I) S*SO3²⁻ + 2H⁺ → H2SO4 + S...
- Chlorine dioxide
- The correct order of O − O bond length in O2, H2O2, and O3 is
- Xenon fluorides acts as fluoride acceptor with