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(i) An aqueous solution of a compound A ...

(i) An aqueous solution of a compound A is acidic towards litmus and A sublimes at about `300^(@)C`
(ii) A solution of A, on treatment with an excess of `NH_(4)SCN`, gives a red compound, and on treatment with a solution of `K_(4)[Fe(CN)_(6)]`, gives a blue compound.
(iii) The solid A, on being heated with an excess of `K_(2)Cr_(2)O_(7)` in the presence of concentrated `H_(2)SO_(4)`, evolves deep red vapours of D.
(iv) On passing the vapours of D into a solution of NaOH and then adding the solution of acetic acid and lead acetate, a yellow precipitate of a compound E is obtained.
Q. Can compound A be prepared in the anhydrous form by strongly heating its hydrated crystals?

A

No, because the water molecules are very stongly bound in the hydrated crystals

B

No, because the salt gets hydrolysed in the process

C

Yes, because the water molecules are loosely bound in the hydrated crystals

D

yes, because the salt sublimes at `300^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
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VK JAISWAL ENGLISH-QUALITATIVE INORGANIC ANALYSIS-LEVEL 3
  1. When a crystalline compound X is heated with K(2)Cr(2)O(7) and concent...

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  2. A white solid A reacts with dilute H(2)SO(4) to produce a colourless g...

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  3. A white solid A reacts with dilute H(2)SO(4) to produce a colourless g...

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  4. A white solid A reacts with dilute H(2)SO(4) to produce a colourless g...

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  5. A white solid A reacts with dilute H(2)SO(4) to produce a colourless g...

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  6. A white solid A reacts with dilute H(2)SO(4) to produce a colourless g...

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  7. (i) An aqueous solution of a compound (A) is acidic towards litmus and...

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  8. (i) An aqueous solution of a compound (A) is acidic towards litmus and...

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  9. (i) An aqueous solution of a compound A is acidic towards litmus and A...

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  10. (i) A yellow precipiate of the compound A is formed on passing H(2)S t...

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  11. Q. The white precipitate obtained in step (2) when filtered, washed wi...

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  12. Q. What will happen if the white precipitate obtained in step (9) is t...

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  13. An aqueous solution of a white salt A gives a white precipitate B on t...

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  14. An aqueous solution of a white salt A gives a white precipitate B on t...

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  15. An aqueous solution of a white salt A gives a white precipitate B on t...

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  16. When an aqueous solution of a colourless mixture of two salts is treat...

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  17. When an aqueous solution of a colourless mixture of two salts is treat...

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  18. (i) A white solid mixture of two salts containing a common cations in ...

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  19. (i) A white solid mixture of two salts containing a common cations in ...

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  20. (i) A white solid mixture of two salts containing a common cations in ...

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