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8.Microbes in Human Welfare
normal
Ratio of $CuS{O_4},Ca{(OH)_2}$ and water in ‘Bordeaux mixture' is
A
$4 : 4 : 40$
B
$4 : 4 : 50$
C
$5 : 5 : 40$
D
$5 : 5 : 50$
Solution
(b)Bordeaux mixture is prepared by dissolving $40$ gm of copper sulphate and $40$ gm of calcium hydroxide in $5$ liters of water.
Standard 12
Biology
