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How many gases are evolved when potassiu...

How many gases are evolved when potassium permaganate and potassium dichromate are heated, respectively?

A

1,2

B

2,1

C

1,1

D

2,2

Text Solution

Verified by Experts

The correct Answer is:
C
`2 KMnO_(4) overset("heat")to K_2 MnO_(4) (s) +MnO_(2) (s) +O_(2) (g)`
`K_2 Cr_2 O_(7) overset("heat")to 4K_2 CrO_(4) (s) + 2 Cr_2 O_(3) (s) + 3 O_2 (g) `
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BRILLIANT PUBLICATION-THE D-AND F-BLOCK ELEMENTS-QUESTIONS (LEVEL-III)
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  2. A metal M which is not affected by strong acids like conc. HNO3 conc. ...

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  3. The acidic, basic or amphoteric nature of Mn2 O7 ,V2O5, and CrO are re...

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  4. An inorganic compound on strong heating gave a blackish brown powder a...

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  6. Identify the product and its colour when MnO2 is fused with solid KOH ...

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  7. When manganous salt is fused with a mixture of KNO3 and solid NaOH, th...

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  14. Although +3 is the characteristic oxidation state for lanthanoids, cer...

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