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The wavelength of light is 840 nm. What ...

The wavelength of light is 840 nm. What is its wavelength in Å ?

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`{:((a)H_(2)O,(b)CH_(4),(d)BF_(4)^(-)),((f)PCl_(4)^(+),(i)NH_(4)^(+),(i)PCl_(3)):}`
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RESONANCE ENGLISH-TEST PAPERS-PART - III CHEMISTRY
  1. How many of the following elements show +2 as their most stable oxidat...

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  2. The wavelength of light is 786 nm. What is its wavelength in Å ?

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  3. The wavelength of light is 840 nm. What is its wavelength in Å ?

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  4. Cl-O bond order in perchlorate ion is M and number of resonating str...

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  5. Write the sum of lone pairs of electron on central atom of SF(4), CF(4...

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  6. Find the wavelength of electromagnetic waves of frequency 7×10^19 Hz ...

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  7. Find the wavelength of electromagnetic waves of frequency 9×10^19 Hz ...

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  8. Calculate the no. of mole in 63 g of NHO3

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  9. If 2 liter of 9.8% w//w H(2)SO(4) (d = 1.5 g//mL) solution is mixed wi...

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  10. Select correct option(s): (Use R = (25)/(3) J//mol-K)

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  11. A flask of 4.48 L capacity contains a mixture of N(2) and H(2) at 0^(@...

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  12. A gas absorbs a photon of 310nm and emits three photons. If energy of...

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  13. Find the wavelength of electromagnetic waves of frequency 8×10^19 Hz ...

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  14. In the balanced chemical reaction IO(3)^(ө)+al^(ө)+bH^(ө)rarrcH(2)O+...

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  15. Find the wavelength of electromagnetic waves of frequency 4×10^19 Hz ...

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  16. Names of which of the following end in -ous acid ?

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  17. Which of the following is/are correct for the formation of pi bond ?

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  18. Which of the following will result in zero overlap if molecular axis i...

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  19. In which of the following species, bonding is taking place in excited ...

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  20. Which of the following is/are correctly matched ?

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