A) sodium chloride
B) milk of calcium hydroxide
C) calcium sulphate
D) lime stone
Correct Answer: B
Solution :
The first fungicide discovered by Millardet was Bordeaux mixture. This can be prepared by mixing \[CuS{{O}_{4}}\]with quick lime and water, e.g., \[Ca{{(OH)}_{2}}\] and \[CuS{{O}_{4}}\]. The standard mixture of fungicide contain, \[CuS{{O}_{4}}\], \[CaO\] and \[{{H}_{2}}O\] in the ratio of 5: 5: 50 respectively.
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