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Which of the following statements regard...

Which of the following statements regarding spectral series is correct ?

A

The lines in Balmer series correspond to electron transitions from energy levels higher than n =1 energy level

B

Paschen series appears in infra -red region

C

The lines of Lyman series appear in visible region

D

Transitions from higher energy levels to 4th energy level produce Pfund series which fall in infra-red region

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The correct Answer is:
B
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MODERN PUBLICATION-UNIT TEST 1 -SELECT THE CORRECT ANSWER
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  2. Atoms may be regarded as comprising protons, neutrons and electrons. I...

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  3. Which of the following statements regarding spectral series is correct...

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  4. As the atomic number of the halogens increases, the halogens :

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  5. Which of the following has largest size ?

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  6. Which of the following electronic configuration would you expect to ha...

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  7. The negative electron gain enthalpy values of halogens follows the ord...

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  8. Which of the following does not involve sp^(3) hybridisation of the ce...

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  9. The geometry of NF(5) molecule is :

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  10. Which of the following species does not exist ?

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  11. Which of the following has largest ONO bond ?

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  12. XeF(2) molecule is :

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  13. Which of the following has least hydrogen bonding ?

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  14. Which of the following is paramagnetic ?

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  15. Which of the following has lowest boiling point ?

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  16. The molecule having highest bond dissociation energy is :

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  17. Intermolecular forces in solid hydrogen are :

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  18. Which of the following is least ionic ?

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  19. What weight of CO(2) will contain same number of oxygen atoms as are p...

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  20. The root mean square velocity of one mole of a monatomic gas having mo...

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