The diagram below illustrates iodine test for the presence of starch in a leaf

Why will the colour of leaf after boiling it with methylated spirit turns pale white ?

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

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 What is the composition of lodine solution in 100 mL of water?

What is the colour of leaf if starch is present in it after iodine test?

Enumerate the steps involved in testing a green leaf for the presence of starch.

Enumerate the steps involved in testing a green leaf for the presence of starch.

Copy and complete the following by filling in the blanks 1 to 5 with appropriate words/terms/ phrases: To test the leaf for starch, the leaf is boiled in water…….(1) It is next boiled in methylated spirit to……(2)The leaf is placed in warm water to soften it. It is then placed in a dish and ......... (3) solution is added. The region, which contains starch, turns...(4)and the region, which does not contain starch, turns ...... (5)

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours. During the starch test, why was the leaf: (1) boiled in water (2) boiled in methylated spirit

Consider the following statements : S_(1) : A metal chloride on heating with an aqueous solution of K_(2)Cr_(2)O_(7) and concentral H_(2)SO_(4) produces deep red vapours. S_(2) : Lead nitrate dissolved in water responds to brown ring test. S_(3) : Deep red solution of ferric acetate on boiling with water turns to brownishred solution. S_(4) : NaNO_(2) solution acidified with acetic acid produces blue colour with iodide solution and starch paste of these.

The diagram below represents an experiment conducted to prove the importance of a factor in photosynthesis Study the same and then answer the questions that follow Why was the experimental leaf kept in (1) boiling water (2) methylated spint?