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Cobalt chloride method was first used by...

Cobalt chloride method was first used by

A

F. Darwin (1912)

B

Stahl (1894)

C

Curtis (1926)

D

Leibeg (1840)

Text Solution

Verified by Experts

The correct Answer is:
B
Cobalt chloride method was first used by Stahl in 1894. In this method transpiration a shown by a change in colour rather than a change in weight.
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