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The oxides of group 13 elements are give...

The oxides of group 13 elements are given as
A) `B_2 O_3` B) `Al_2 O_3 ` C) `Ga_2 O_3` D)`"In"_2 O_3`

A

A and B are basic in nature

B

B and C are amphoteric in nature

C

C and D are acidic in nature

D

A and D are neutral

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The correct Answer is:
B
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The nature of B_2 O_3 is

The nature of B_2O_3 is

The Nature of Al_2 O_3 is

Exothermic reaction among the following is A) Cr_(2) O_(3) + 2All to 2 Cr + Al_(2) O_(3) B) Fe_(2) O_(3) + 2Al to 2 Fe + Al_(2) O_(3) C) 3 Mn_(3) O_(4) + 8 Al to 4 Al_(2) O_(3) + 9 Mn

How is the theory of complexes used to sperate Fe_2O_3 and Al_2O_3 ?

Which is a mutual reduction reaction A) KMnO_(4) +O_(3)" "B) H_(2)O_(2)+O_(3) " "C) Ag_(2)O+O_(3)" "D) KI+H_(2)O+O_(3)

Which is a mutual reduction reaction ? A) KMnO_(4)+O_(3) B) H_(2)O_(2)+O_(3) 3) Ag_(2)O+O_(3) D) KI+H_(2)O+O_(3)

AAKASH SERIES-ELEMENTS OF BORON FAMILY-PRACTICE EXERCISE
  1. The reactants in the industrial method of preparation of diborane are

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  2. The total number of vacant orbitals involved in bond formation in dibo...

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  3. Standard electrode potential values for Al^(3+)//Al is -1.66V and tha...

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  4. Which is not correct in case of boric acid ?

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  5. When diborane undergoes complete methylation, the number of hydrogen a...

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  6. Diborane reacts with ammonia under different conditions to give a vari...

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  7. 2Al + 6HCl to 2Al^(3+) + 6Cl^- + 3H2 2Al + 2NaOH + 6H2 O to 2Na(OH)...

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  8. The oxides of group 13 elements are given as A) B2 O3 B) Al2 O3 ...

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  9. Aluminium liberates dihydrogen gas with both dil.HCI and aqueous NaOH....

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  10. Boron is unable to form BF6^(3-) ion because of

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  11. The compound formed when diborane reacts with trimethyl amine is

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  12. Which of the following is formed when diborane reacts with sodium hydr...

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  13. LiH + B2 H6 overset("dry ether")to X In this reaction 'X' is used ...

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  14. The use of aluminium and its compounds for domestic purposes is now re...

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  15. On a weight - to - weight basis, the electrical conductitity of alumin...

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  16. Structure of -BH2 group is

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  17. Empirical formula of inorganic benzene is

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  18. Diborane on heating to 200^@C with ammonia it gives

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  19. Diborane reacts with HCl in the presence of AICI3 and liberates

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  20. What is the nature of aqueous borax solution ?

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