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Question
The transpiration from the two leaf surfaces are compared by dry paper strips previously soaked in solution of
The transpiration from the two leaf surfaces are compared by dry paper strips previously soaked in solution of
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Solution
The correct option is C Cobalt chloride
The transpiration can be demonstrated by cobalt chloride paper test. Dry cobalt chloride is blue, while the moist one is pink. A filter paper slip can be dipped in 3 to 5% cobalt chloride solution and dried. It appears blue over leaf surface and should be protected from atmospheric humidity by a glass slide or transparent tape, change in colour of the filter paper slip from blue to pink indicates transpiration.
The transpiration can be demonstrated by cobalt chloride paper test. Dry cobalt chloride is blue, while the moist one is pink. A filter paper slip can be dipped in 3 to 5% cobalt chloride solution and dried. It appears blue over leaf surface and should be protected from atmospheric humidity by a glass slide or transparent tape, change in colour of the filter paper slip from blue to pink indicates transpiration.
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