Column-I Column-II
A) K₂Cr₂O₇ + H₂SO₄ + H₂O₂ $\to$ P) oxidizing property of H₂O₂
B) KMnO₄ + H₂SO₄ + H₂O₂ $\to$ Q) reducing property of H₂O₂
C) NaOH + H₂O₂ $\to$ R) one of the product has a tetrahedral geometry
D) PbS + H₂O₂ $\to$ S) liberated gas acts as a supporter of combustion
A B C D
1) QRS QRS RS PR
2) QPS QRS SR QP
3) PQ QR RS SQ
4) QP RP SR SQ

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answer is A.

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Detailed Solution

Whenever oxygen gas is lost as side product the reaction is considered as reducing in nature.

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	Column-I		Column-II
A)	K₂Cr₂O₇ + H₂SO₄ + H₂O₂ $\to$	P)	oxidizing property of H₂O₂
B)	KMnO₄ + H₂SO₄ + H₂O₂ $\to$	Q)	reducing property of H₂O₂
C)	NaOH + H₂O₂ $\to$	R)	one of the product has a tetrahedral geometry
D)	PbS + H₂O₂ $\to$	S)	liberated gas acts as a supporter of combustion