Some Basic Concepts Of Chemistry Question 284

Question: Complete combustion of 0.858 g of compound X gives 2.63 g of CO2 and 1.28 g of H2O . The lowest molecular mass X can have [Kerala MEE 2000]

Options:

A) 43 g

B) 86 g

C) 129 g

D) 172 g

Show Answer

Answer:

Correct Answer: A

Solution:

=1244×2.630.858×100=83.6

=218×1.28.858×100=16.4 Missing \end{matrix}

C3H7=12×3+7=43gm .



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