MPSC Rajyaseva 2015 GS Paper 1 — Question 63

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ग्लुकोज मधे कार्बनची टक्केवारी __________ आहे. / The percentage of carbon in glucose is

a)40%✓ Correct

b)53%

c)45%

d)55%

The molecular formula of glucose is C6H12O6. Molar mass = (6*12) + (12*1) + (6*16) = 72 + 12 + 96 = 180 g/mol. Percentage of carbon = (72 / 180) * 100 = 40%.

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