Which of the following is a redox reacti...

Which of the following is a redox reaction?

A

`2CuSO_4 +4KI rarr Cu_2I_2 +2K_2SO_4 +I_2`

B

`SO_2 +H_2O rarr H_2SO_3`

C

`Na_2SO_4 +BaCl_2rarrBaSO_4+2NaCl`

D

`CuSO_4 +4NH_3rarr[Cu(NH_3)_4]SO_4`

Text Solution

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The correct Answer is:

A

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Knowledge Check

Which fo the following is a redox reaction ?

A

`Na_2SO_4 + BaCl_2 rarr BaSO_4 + 2NaCl`

B

` SO_2 + H_2O rarr H_2SO_3`

C

`2 CuSO_4 + 4Kl rarr 2Cu l +2K_2SO_4`+I_2

D

` CuSO_4 + 4NH_3 rarr [Cu(NH_3)_4]SO_4`

Which of the following is are redox reaction(s) ?

A

`BaO_(2)+H_(2)SO_(4)toBaSO_(4)+H_(2)O_(2)`

B

`2BaO+O_(2)to2BaO_(2)`

C

`2kClO_(3)to2kCl+3O_(2)`

D

`SO_(2)+2H_(2)Sto2H_(2)O+3S`

Which of the following is redox reaction?

A

1-Butyne `underset(BaSO_(4))overset(Pd//C-H_(2))to`

B

2-Butyne `overset(NaNH_(2))to`

C

1-Butyne `overset(Alc.KOH)to`

D

`HC-=CH underset("Copper tube")overset("red hot")to`

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