What is true for photosynthesis?

Both carbon dioxide and water are oxidised

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Both carbon dioxide and water are reduced

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Carbon dioxide is oxidised and water reduced

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Carbon dioxide is reduced and water oxidised

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Solution

The correct option is D Carbon dioxide is reduced and water oxidised
Photosynthesis is a process carried out by an organism in which light absorbing pigments chlorophyll, carotenoids and xanthophylls are present which help in the reduction of CO $_{2}$ and oxidation of water.
$6 C O_{2} + 6 H_{2} O \to C_{6} H_{12} O_{6} + 6 O_{2}$
So the correct option is 'Carbon dioxide is reduced and water oxidised'.

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Similar questions

Which one chemical reaction occurs during photosynthesis ?

(a) Carbon dioxide is reduced and water is oxidised.

(b) Water is reduced and carbon dioxide is oxidised.

(d) Both carbon dioxide and water are reduced.

Carbon dioxide and water are released during:

Q. Water and carbon dioxide are classified as biomolecules.

The following is a simplified diagram showing the fate of glucose during aerobic and anaerobic respiration. Identify the end products that are formed at stages indicated A, B, C, and D. Identify the correct option from those given below.

Q. Which of the following represents photosynthesis?
(a) water + oxygen----> carbon dioxide + carbohydrate
(b) carbon dioxide + water---->oxygen + carbohydrate
(c) carbohydrate + oxygen---> water + oxygen
(d) carbon dioxide + oxygen---> water + carbohydrate

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