A combined solution of copper sulphate and calcium hydroxide which is used as a fungicide is

Fehling solution

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Folin's mixture

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Carminative mixture

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Bordeaux mixture

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Solution

The correct option is D Bordeaux mixture
Bordeaux mixture has been used for ages as an effective fungicide. This fungicide is so called 'holy water of plant pathology' which was first discovered by Prof. Millardet of Bordeaux university. Bordeaux comprises copper sulphate, lime and water and is ideal as a winter fungicide as it can adhere to plants in rainy climate. Being an effective fungicide against white rust, mildews and blights gives a long lasting protection to plants.

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Similar questions

Q. How will you distinguish between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?

Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium sulphate. In an experiment, 15.95 g of copper sulphate reacted with 8.0 g of sodium hydroxide to form 9.75 g of copper hydroxide and 14.2 g of sodium sulphate. Which law of chemical combination is illustrated by this data?

Q. Bordeaux used as a fungicide is a mixture of:

Q. 'Bordeaux mixture' is used as a fungicide. It is a mixture of:

When sodium hydroxide solution is added to copper sulphate solution, a blue precipitate of copper hydroxide is formed along with sodium sulphate solution. What kind of chemical reaction takes place between them?

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