Which of the following would be indicators that can be used to observe transpiration occurring in a leaf?

Litmus paper

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Dry cobalt chloride paper

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pH paper

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Bathophenanthroline Indicator Paper

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Solution

The correct option is B
Dry cobalt chloride paper

Cobalt chloride paper is used to test the presence of water through transpiration. When water is present, the colour of the cobalt chloride paper changes from blue to pink.

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Similar questions

Cobalt chloride paper is an indicator of ___ .

When a blue litmus paper is put in an acidic Solution, it turns red. Can the red litmus which has been formed used to indicate basicity?

In other words, can litmus paper which has changed its colour once be reused?

What is the characteristic feature of the cobalt chloride paper used in the transpiration experiment?

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