In an experiment to test the presence of starch in a leaf, the leaf is boiled in alcohol for a few minutes using a water bath. This is an essential step in the experiment because alcohol:

In an experiment to test the presence of starch in a leaf, the plucked leaf is first boiled in water for a few minutes. This is an important step in the experiment because it:

In an experiment to show that 'sunlight is necessary for photosynthesis', the leaf is boiled in alcohol for a few minutes using a water bath. It is essential because:

The diagram below illustrates iodine test for the presence of starch in a leaf Why is the leaf boiled in water for few minutes ?

The diagram below illustrates iodine test for the presence of starch in a leaf Why is the leaf again boiled in hot water?

In the experiment to show that light is necessary for photosynthesis, the pluked leaf is boiled in ethanol and then washed with water. After this, it is tested for the presence of a carbohydrate by a chemical which is:

Suggest an experiment to prove that the presence of air and water are essential for corrosion. Explain the procedure.

When carrying out the strach test on a leaf, why is it important to boil the leaf in alcohol ?

Boojho wanted to test the presence of starch in leaves. He performed the following steps. He took a leaf and boiled it in water. He did not get the expected result. Which step did he miss? Explain.

We can use lime water to test the presence of CO_2 in respiration experiments. What change do you observe in lime water ?