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  1. Tardigrade
  2. Question
  3. Chemistry
  4. The wavelength of line emitted when an electron jumps from an outer orbit to inner orbit which possess an energy difference of 3eV will be:

Q. The wavelength of line emitted when an electron jumps from an outer orbit to inner orbit which possess an energy difference of will be:

NTA AbhyasNTA Abhyas 2020 Report Error

Solution:

Use
Or

Questions from NTA Abhyas 2020

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3. At standard conditions, if the change in the enthalpy for the following reaction is Given that bond energy of and is and , respectively, what is the bond energy (in of ?

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4. An organic compound contains (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of is is ]

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5. The density of 2 M aqueous solution of NaOH is 1.28 g/cm. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol]

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6. Given below are half cell reactions:




Will the permanganate ion, liberate from water in the presence of an acid ?

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7. In water saturated air the mole fraction of water vapour is . If the total pressure of the saturated air is , the partial pressure of dry air is :

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8. Following limiting molar conductivities are given as



for will be-

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9. One atom of an element weighs . Its atomic mass is

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10. In the following reaction,
A,
the number of sigma(s) bonds present in the product A is :-

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