Complete combustion of x grams of an organic compound produced:

• 0.25 g CO₂
• 0.12 g H₂O

If carbon is 25% and hydrogen is 4.89% in the compound, then:

x × 10^-3 g = ?

Complete combustion of x grams of an organic compound produced:

• 0.25 g CO₂
• 0.12 g H₂O

If carbon is 25% and hydrogen is 4.89% in the compound, then:

x × 10^-3 g = ?

Detailed Solution

Mass of carbon obtained from CO₂:

= (12/44) × 0.25

= 0.06818 g

Since carbon is 25% of the compound:

0.25x = 0.06818

x = 0.27272 g

Therefore:

x × 10³ = 272.72

Nearest integer:

273

Verification using hydrogen percentage also gives approximately the same value.

Final Answer

Option (1) 273