Q.

Correct statements among the following areA) Hydrogen is a better fuel than petrolB) H2O2 bleaches by reductionC) Formula of permutit is Na2[Na4(PO3)6]D) H-H bond length is equal to D-D bond length

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a

A, B, C only

b

A, B only

c

A, D only

d

C, D only

answer is C.

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Detailed Solution

A) Calorific value of Hydrogen = 2862 kJ/mole    Calorific value of Petrol = 5550114kJ/moleB) H2O2 → H2O + (O)Coloured matter + (O) → ColourlessH2O2 bleaches by oxidationC) Permutit is Na2 Al2Si2O8.xH2O  (or) NaAlSiO4.xH2OD) H-H B.L = D-D B.L = 74 Pm
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