$R.Q.$ is defined as:

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

$RQ$ (Respiratory Quotient) is always less than one in:

$RQ$ (Respiratory Quotient) of carbohydrate is more than lipid and protein because ............

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 $R.Q.$ (Respiratory Quotient) of sprouting potato tubers will be: