JEE MAIN - Chemistry (2023 - 8th April Morning Shift - No. 20)
Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of $$\mathrm{O}_{3}$$ per mole of $$(\mathrm{X})$$ and gives one mole each of ethanal and propanone is _________ $$\mathrm{g}~ \mathrm{mol}^{-1}$$
(Molar mass of $$\mathrm{C}: 12 \mathrm{~g} \mathrm{~mol}^{-1}, \mathrm{H}: 1 \mathrm{~g} \mathrm{~mol}^{-1}$$ )
(Molar mass of $$\mathrm{C}: 12 \mathrm{~g} \mathrm{~mol}^{-1}, \mathrm{H}: 1 \mathrm{~g} \mathrm{~mol}^{-1}$$ )
Answer
70
Explanation
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Hydrocarbon $(\mathrm{X})$ is 2-methyl-but-2-ene $\left(\mathrm{C}_5 \mathrm{H}_{10}\right)$
And the molecular mass is $5(12)+10(1)=70$.
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