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Question
Biology
Bordeaux mixture can be prepared by mixing the copper sulphate with:
Q. Bordeaux mixture can be prepared by mixing the copper sulphate with:
1921
188
Manipal
Manipal 2005
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A
sodium chloride
12%
B
milk of calcium hydroxide
62%
C
calcium sulphate
6%
D
lime stone
19%
Solution:
Bordeaux mixture is a good fungicide, discovered by Millardet. It is a mixture of copper sulphate, quick lime and water. The standard mixture contains these three in the ratio of
5
:
5
:
50
,
respectively.