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Which of the following oxide of C is inv...

Which of the following oxide of `C` is involved in the process of photosynthesis ?

A

`CO_(2)`

B

`CO`

C

`C_(5)O_(6)`

D

`C_(3)O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`CO_(2)`, which is normally present to the extent of `-0.03%` by volume in the atmosphere, is removed (absorbed) by plants through a process called photosynthesis. It is the process by which absorbed `CO_(2)` combines with `H_(2)O` to form carbohydrates (glucose, starch) in the presence of chlorophyll (green coloring pigment of leaves) and sunlight:
`6CO_(2) + 12H_(2)O underset("Chlorophyll") overset(hv)rarr C_(6)H_(12)O_(6) + 6O_(2) + 6H_(2)O`
Thus, by the process of photosynthesis, plants make food for themselves as well as for animals and human beings.
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Knowledge Check

  • Which of the following reaction is not involved in themite process

    A
    `3Mn_(3)O_(4) +8Al rarr 9Mn + 4Al_(2)O_(3)`
    B
    `Cr_(2)O_(3) +2Al rarr Al_(2)O_(3) + 2Cr`
    C
    `2Fe +Al_(2)O_(3) rarr 2Al + Fe_(2)O_(3)`
    D
    `B_(2)O_(3) +2Al rarr 2B +Al_(2) O_(3)`

  • Which of the following is involved in the transfer of elctrons in photosynthesis ?

    A
    Phytochrome
    B
    Cytochorme
    C
    Photohormone
    D
    Desmosome

  • Which of the following processes involve the roasting process ?

    A
    `ZnCO_(3) to ZnO + CO_(2)`
    B
    `Fe_(2)O_(3) + 3C to 2Fe + 3CO`
    C
    `2PbS + 3O_(2) to 2PbO + 2SO_(2)`
    D
    `Al_(2)O_(3).2H_(2)O to Al_(2)O_(3) + 2H_(2) O`

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