The $RQ$ of actively photosynthesizing tissue is.........

Arrange the $RQ$ value of the following respiratory substrates in ascending order:
$(a) C_{4}H_{6}O_{5}$ (Malic acid)
$(b) C_{6}H_{12}O_{6}$ (Glucose)
$(c) C_{18}H_{36}O_{2}$ (Stearic acid)
$(d) \text{Succulents (night)}$

The $RQ$ (Respiratory Quotient) of Tripalmitin is:

If the volume of $CO_2$ liberated during respiration is more than the volume of $O_2$ used,the respiratory substance will be

Given below are two statements.
$Statement-I$: When fat is the respiratory substrate, the $RQ$ is $1$.
$Statement-II$: When carbohydrate is the respiratory substrate, the $RQ$ is less than $1$.
In the light of above statements, choose the correct answer from the options given below.

The Respiratory Quotient $(RQ)$ for organic acids is ......... .