Answer:
See explanation and image attached
Explanation:
When 1 mole of hydrogen is added to 3-hexyne, the addition occurs on the same face or side of the triple bond to yield cis-2-hexene in the presence of lindlar catalyst which prevents further hydrogenation. This is known as syn addition.
The syn addition is achieved because the hydrogen molecule is first adsorbed on the surface of the palladium metal and is subsequently attached to the same face of the triple bond in 3-hexyne as shown in the image attached to this answer.
Answer:
Difference of path length
Explanation:
When we look into glass of ice tea, from top to bottom path length will be more as compared to when we look from side of the glass.
According to Beer Lambert law, absorbance is proportional to the path length. Path length is the distance that light travels through the material.
More path length will lead to more absorbance of light and more the absorbance more the darker tea looks.
Moreover, tea is a homogeneous solution, therefore, concentration of will be same through out the solution. Since, concentration is same, therefore, the effect of gravity will be also be same on all particles.
Therefore, difference in path length is responsible .
So, the correct option is option a, difference in path length