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SO(2) and CO(2) both lime water (A) milk...

`SO_(2)` and `CO_(2)` both lime water (A) milky ,`SO_(2)` also turns `K_(2)Cr_(2)O_(7)//H^(o+)(B)` green `O_(2)` is solution in pyrogallal (C ) turming it black .These gases are to the detected in order by using these reagents .The order is

A

(A),(B) ,(C )

B

(B),(C) ,(A)

C

(B),(A) ,(C )

D

(A),(C) ,(B)

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The correct Answer is:
c
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SO_(2) and CO_(2) both turn lime water (X) milky, SO_(2) also turns K_(2)Cr_(2)O_(7)//H^(+) (Y) green while O_(2) is soluble in pyrogallol (Z) turning it black. These gases are to be detected in order by using these reagents. The order is:

K_(2)Cr_(2)O_(7)//H^(+) changes to green by

SO_(2) reduces acidified K_(2)Cr_(2)O_(7) to

A mixture of K_(2)Cr_(2)O_(7) and conc. H_(2)SO_(4) forms

The conversion of K_(2)Cr_(2)O_(7) into Cr_(2)(SO_(4))_(3) is

Acidified solution of K_(2)Cr_(2)O_(7) on treatment with H_(2)O_(2) yields :

A gas when passed through K_(2)Cr_(2)O_(7) and dil. H_(2)SO_(4) solution turns it green, the gas is :

CENGAGE CHEMISTRY-QUALITATIVE INORGANIC SALT ANALYSIS-Ex 8.2
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  2. AgNO(3)given white ppt hypo changing to black ofter some time .Blac...

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  3. SO(2) and CO(2) both lime water (A) milky ,SO(2) also turns K(2)Cr(2)...

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  4. Aluminium sulphate (X) is slightly insoluble in water it is convert...

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  5. CoCI(2) gives blue colour with NH(4)SCN due to formation of

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  14. Solution of a salt in dil H(2)SO(4) produces deep blue colour with st...

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  17. To solution of a salt in acid medium AgNO(3) is added a white ppts r...

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