JEE Main 2022 · 30 Jun · Shift 1 · Chemistry Q89

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ChemistryInteger+4 / -1Question 89 of 90

A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of $\mathrm{H_2}$ gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/molecules produced from the ozonolysis of compound 'X' is ______.

Your answer

Answer and worked solution

Official answer: 4

Formula. M = 80 is $\mathrm{C_6H_8}$ ; $\frac{8.40}{22400}\div\frac{0.010}{80}=3$ C=C.

X is hexa-1,3,5-triene; ozonolysis gives 2 HCHO and 2 glyoxal: 4 molecules.

Answer: 4

Topics:Alkenes

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JEE Main 2022 · 30 Jun · Shift 1, Chemistry question 89