The $R.Q.$ is more than one when the respiratory substrate is

Which of the following respiratory substrates has a Respiratory Quotient $(RQ)$ of less than $1$?

The respiratory quotient $(RQ)$ or respiratory ratio is defined as:

$2(C_5H_9O_5) + 145O_2 \rightarrow 102CO_2 + 98H_2O + \text{energy}$. The Respiratory Quotient $(RQ)$ of a biomolecule used for respiration, as per the above equation, would be:

What is the Respiratory Quotient $(RQ)$ of lactic acid fermentation?

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)
$(d) \text{Succulents (night)}$