Step 1: Understanding Floridean Starch Floridean starch is the primary storage polysaccharide in Rhodophyceae (Red Algae). It is chemically similar to amylopectin and glycogen because it has a highly branched structure.
Step 2: Evaluating the Assertion and Reason - Assertion (A) is correct: Rhodophyceae stores food as floridean starch. - Reason (R) is also correct: Floridean starch has a structure resembling amylopectin and glycogen. - (R) correctly explains (A), as it justifies why floridean starch is used as a storage material. Thus, both (A) and (R) are correct, and (R) is the correct explanation of (A).
Observe the following data given in the table. (\(K_H\) = Henry's law constant)
Gas | CO₂ | Ar | HCHO | CH₄ |
---|---|---|---|---|
\(K_H\) (k bar at 298 K) | 1.67 | 40.3 | \(1.83 \times 10^{-5}\) | 0.413 |
The correct order of their solubility in water is
For a first order decomposition of a certain reaction, rate constant is given by the equation
\(\log k(s⁻¹) = 7.14 - \frac{1 \times 10^4 K}{T}\). The activation energy of the reaction (in kJ mol⁻¹) is (\(R = 8.3 J K⁻¹ mol⁻¹\))
Note: The provided value for R is 8.3. We will use the more precise value R=8.314 J K⁻¹ mol⁻¹ for accuracy, as is standard.