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Aluminium vessels should not be washed w...

Aluminium vessels should not be washed with materials containing washing soda because:

A

washing soda is expensive

B

washing soda is easily decomposed

C

washing soda reacts with aluminium to form soluble aluminate

D

washing soda reacts with aluminium to form insoluble aluminium oxide

Text Solution

Verified by Experts

The correct Answer is:
C
`Na_(2)CO_(3)+H_(2)Oto 2NaOH+CO_(2) , 4OH^(-)+Al to [Al(OH)_(4)]^(-)` (soluble complex)
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RESONANCE-P-BLOCK ELEMENT (BORON AND CARBON FAMILY)-Exercise-2 Part-I : ONLY ONE OPTION CORRECT TYPE
  1. Identify true statement:

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  2. An element E = (B,C,Si,Ge), predict E on the basic of given conditions...

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  3. In limited supply of oxygen C & Si are allowed to teacted at sufficien...

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  4. 2E+N(2)to2EN (very hard substance) EN+H(2)Oto Acid + pungent smelli...

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  5. Aluminium vessels should not be washed with materials containing washi...

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  6. Select the incorrect statement of the following.

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  7. Which of the following statements is correct for diborane?

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  8. B(2)H(6)+NH(3)to Addition compound (X) overset("450 K")to Y+Z (g) ...

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  9. Borazine and benzene show striking similarities in their properties. T...

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  10. Aqueous ammonia is used as a precipitating reagent for Al^(3+) ions as...

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  11. Borax is used as buffer since :

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  12. Which of the following sompound is obtained on heating potassium ferro...

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  13. B(OH)(3)+NaOH to Na[B(OH)(4)](aq). Then addition of which of the fo...

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  14. H(3)BO(3)(s) + aq. NaOH overset(Delta)rarr(X), H(3)BO(3)(s) + "molte...

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  15. SnCl(4) stannic chloride hydrolyses in dilute solution as per given r...

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  16. Amphoteric oxide (X) + 3C+ Cl(2) to Poisonous gas + anhydrous chloride...

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  17. Which of a solution of sodium hydroxide is addeed in excess to the sol...

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  18. BF(3) on hydrolysis forms

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  19. Preparation of organosilicones from SiCl(4) involves substituion in fi...

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  20. To get the silicone R(3)Si-(OSiR(2))(n)-SiR(3) having 4Si-O-Si linkage...

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