Question

Statement-I: K$_h$ for ideal dilute solution does not change with varying the concentration of solute.
Statement-II: K$_h$ for solution having same gas solute is independent of nature of solvent?

• A. Both statements are correct.
• B. Statement-I correct; Statement-II incorrect.
• C. Statement-II correct; Statement-I incorrect.
• D. Both statements are incorrect.

Hint:

Henry's law constant (K$_h$) is dependent on the nature of both the solvent and the solute, and temperature also plays a key role.

Answer 1

The Correct Option is B

Step 1: Determine Formula. 1 mole alkene + 1 mole Br$_2$ $\to$ Dibromo-alkane (Addition reaction). Product contains 2 Bromine atoms. Given Ratio C:Br = 3:1. Since there are 2 Br atoms, there must be $3 \times 2 = 6$ Carbon atoms. Formula: C$_6$H$_{10}$Br$_2$ (Derived from Cyclohexene C$_6$H$_{10}$).
Step 2: Calculate Molar Mass. Mass of C$_6$H$_{10}$Br$_2$: $6 \times 12 + 10 \times 1 + 2 \times 80 = 72 + 10 + 160 = 242$ g/mol.
Step 3: Calculate Percentage. % Br = $\frac{\text{Mass of Br}}{\text{Total Mass}} \times 100$ % Br = $\frac{160}{242} \times 100 \approx 66.11\%$ Conclusion: Option (1).