Determine whether each pair of substances forms a homogeneous solution when combined. (a) ccl4 and h2o (b) kcl and h2o (c) br2 and ccl4 (d) ch3ch2oh and h2o

1)  CCl₄ and H₂O:
                           No! Tetrachloromethane being non-polar in nature doesn't dissolve in water. Hence, when mixed they form two separate layers. Hence it doesn't give a Homogeneous Solution.

2)  KCl and H₂O:
                          Yes! Potassium Chloride when dissolved in water ionizes to produce K⁺ ions which interacts with oxygen atom of water and Cl⁻ ions which interacts with hydrogen atoms of water. Therefore, forms a Homogeneous Solution.

3)  Br₂ and CCl₄:
                        Yes! Bromine being non polar dissolves in non polar tetrachloromethane and forms a Homogeneous Solution.

4)  CH₃-CH₂-OH and H₂O:
                                         Yes: Ethanol and water forms Homogeneous Solution due to presence of stronger hydrogen bond interactions.