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Out of InCl3 and In Cl, which one is mor...

Out of `InCl_3` and In Cl, which one is more stable and why?

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Due to weak inert pair effect, the +3 oxidation state of In is relatively more stable,
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-SHORT -TYPE QUESTIONS
  1. Explain why BF3 forms addition compound with NH3 .

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  2. Out of TlCl3 and TlCl, which one is more stable and why?

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  3. Out of InCl3 and In Cl, which one is more stable and why?

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  4. Explain why boron does not form B6^(3-) ion.

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  5. BF3 is a weaker Lewis acid than BCl3 -why?

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  6. How can you identify a cobalt salt by borax bead test?

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  7. Comment on the shapes of BF3 molecule and BF4^(-) ion.

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  8. Explain why aluminium vessel can be used for storing concentrated nitr...

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  9. Explain why melting and boiling points of boron is much higher.

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  10. p pi - p pi back bonding occurs in the case of boron halides but not i...

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  11. AIF3 is insoluble in anhydrous HF but dissolves when NaF is added to t...

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  12. Metallic aluminium is frequently used as a reducing agent in the extra...

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  13. Is boric acid a protonic acid? Explain.

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  14. When phenolphthalein is added to an aqueous solution of borax, the sol...

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  15. Explain why diamond is hard but graphite is soft.

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  16. Graphite is a conductor of electricity but diamond is not-why?

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  17. Explain why carbon monoxide is a poisonous gas.

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  18. SiCl4 undergoes easy hydrolysis but C Cl4 does not undergo hydrolysis-...

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  19. CO2 gets absorbed in alkaline solution but CO does not under ordinary ...

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  20. CO is a superior fuel-why?

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