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For He^+and H in third orbit ratio of de...

For `He^+`and H in third orbit ratio of de Broglie wavelength is ?

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
  1. Phenol reacts with HNO3 gives which major Compound ?

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  2. in which of the following bond order increases ?

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  3. For He^+and H in third orbit ratio of de Broglie wavelength is ?

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  4. Density of NaCl is 43.1 g/cc Find the distance between Na^+ and Cl^-

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  5. 0.01m moles , 1L H2SO4 solution is given 50% of the solution is taken ...

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  6. which of the following is correct about tyndall effect ?

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  7. In the following Reaction eight moles of sodium hydroxide are broken d...

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  8. Statement-1: Davisson-Germer experiment established the wave nature of...

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  9. Less amount of soap does not do cleaning action properly due to

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  10. Ce^(4+) act as :

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  11. Arrange in order of reduction potential

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  12. Dettol is mix of a & b . B has 2 pi electrons, then B is

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  13. Which has min spin only magnetic moment

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  14. which will give burite test

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  15. which of the following species have zero dipole moment BF3, BeCl2 NH3,...

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  16. Assertion : Water with BOD value 17 is considered polluted Reason : ...

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  17. Assertion : The amphoteric behavior of H2O is expained by lewis acid b...

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  18. Novalac has molar mass 393 Find no of monomers in it

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  19. Lead nitrate on heating gives PbO, O2 and an unknown gas A which dimer...

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  20. Which of the following has the least spin only magnetic moment ?

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