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If radius of hydrogen atom is 0.53 Å , t...

If radius of hydrogen atom is 0.53 Å , then radius of `""_(3) Li^(2+)` ion will be approximately -

A

`0.99` Å

B

`0.17` Å

C

`1.27` Å

D

`0.53` Å

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CHHAYA PUBLICATION-PREVIOUS YEAR QUESTION PAPER 2019-WBJEE 2019
  1. If radius of hydrogen atom is 0.53 Å , then radius of ""(3) Li^(2+) io...

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  2. In the equilibrium H(2) + I(2) hArr 2HI , if at a given temperature th...

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  3. Which one of the following electronic arrangement is absurd ?

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  4. The quantity h v// K(B) corresponds to -

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  5. In the crystalline solid MSO(4) , n H(2)O of molar mass 250 g * mol...

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  6. At S.T.P. the volume of 7.5 g of a gas is 5.6 L . The gas is -

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  7. The second Ionisation Energy of the following elements follows the ord...

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  8. The melting points of (i) BeCl(2) (ii) CaCl(2) and (iii) HgCl(2) follo...

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  9. Which of these species will have non -zero magnetic moment ?

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  10. The first electron affinity of C , N and O will be of the order -

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  11. The H-N-H angle in ammonia is 107.6^(@) , while the H-P-H angle in pho...

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  12. The conformations of n-butane , commonly known as eclipsed , gauche an...

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  13. The correct order of the addition reaction rates of halogen acids with...

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  14. The indicated atom is not a nucleophilic site in -

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  15. Which of the following mixtures will have the lowest pH at 298 K ?

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  16. For the equilibrium H(2) O(l) hArr H(2) O (v) , which of the followin...

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  17. For a van der Waal's gas , the term ((ab)/(sqrt2)) represents some -

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  18. At constant pressure , the heat of formation of a compound is not depe...

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  19. Which of the following chemicals may be used to identify three unlabel...

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