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Practice Online Test Series for JEE Main 2018 & NEET 2018
Incorrect postulate of kinetic theory of gases
What is the debroglie wavelength of electron, in hydrogen atom, moving in an orbit having maximum magnetic quantum no. =+2
A 124 W bulb converts only 15% of the energy supplied to it into visible light of wavelength 640 nm. How many photons are emitted by the light bulb in one second
40 ml 0.1N `KMnO_4` is equivalent to 30 ml `KHC_2O_4` solution. How many ml of 0.1 NKOH are required to titrate 60 ml of same `KHC_2O_4` solution
Ratio of stoichiometric coefficient of `N_2H_4` to `Cl^-` in the following reaction
`ClO_3^- +N_2H_4 -> NO_3^- +Cl^-`
In the balanced chemical reaction, `IO_3^- +al^- +bH^+ -> cH_2O+dl_2` a, b, c and d respectively correspond to
`Cl_2 +` Cold dil. `NaOH -> X+Y`
`Cl_2 +` Hot conc. `NaOH -> X+Z`
The compound Y and Z are, respectively
Oxidation number of sulphur in `Na_2S_2O_3` would be
In the reaction, `Cl_2+OH^- -> Cl^- + ClO_4^- +H_2O`, chlorine is
A compound contains atoms A, B and C. The oxidation number of A is +2, B is +5 and C is -2. The possible formula of the compound is
Which is the most explosive?
Which of the following compound does not exist?
`H_2S` is more acidic than `H_2O` because
Which of the following compounds is the strongest reducing agent?
Oil of vitriol is
Which one of the following is wrongly matched?
Chlorine shows two oxidation states in the same compound. The compound is
The molecular shapes of `SF_4, CF_4` and `XeF_4` are
Which of the following two are isostructural?
Which of the following statements is correct?
