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Give reasons Aluminium utensils should...

Give reasons
Aluminium utensils should not be kept in water overnight.

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Aluminium utensils should not be kept in water overnight because Aluminium reacts with water and liberates hydrogen gas and heat. It makes colour dissolving and sometimes Aluminium compounds are toxic, in nature.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-THE P-BLOCK ELEMENTS GROUP-13-Short Answer Questions
  1. What happens when Aluminium is heated with dilute NaOH ?

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  2. What happens when BF3 is treated with ammonia ?

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  3. What happens when Hydrated alumina is treated with aq.NaOH solution ?

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  4. Give reasons Conc. HNO3 can be transported in aluminium container.

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  5. Give reasons A mixture of dil. NaOH and aluminium pieces in used to...

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  6. Give reasons Aluminium alloys are used to make aircraft body

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  7. Give reasons Aluminium utensils should not be kept in water overnigh...

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  8. Give reasons Aluminium wire is used to make transmission cables .

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  9. Explain why the electronegativity of Ga, In and Tl will not vary very ...

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  10. Explain borax bead test with a suitable example

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  11. Explain the structure of diborane.

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  12. Explain the reactions of aluminium with acids.

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  13. Write a short note on the anomalous behaviour of boron in the group - ...

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  14. Aluminium reacts with dil. HNO3 but not with conc. HNO3-explain.

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  15. Give two methods of preparation of diborane.

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  16. How does diborane react with H2O ?

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  17. How does diborane react with CO ?

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  18. How does diborane react with N(CH3)3 ?

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  19. Al2O3 is amphoteric -explain with suitable reactions.

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  20. Na2B4O7 + Conc. H2SO4 to A underset"(ii) Ignite"overset((i)C2H5OH)to B...

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