RQ of malic acid is

Options

A $1.9$
B $1.49$
C $1.33$
D $1$

Correct answer

C. $1.33$

Step-by-step solution

RQ of malic acid is 1.33. Respiratory Quotient (RQ) is the ratio of the volume of

\mathrm{CO}_2

produced to the volume of

\mathrm{O}_2

consumed in respiration over a period of time. RQ is slightly more than unity when organic acids are broken down as respiratory substrates under aerobic conditions, e.g. malic acid. RQ of malic acid is

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