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The p-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
MCQ
Among the following the correct statement is:
  • A
    Phosphates have no biological significance in humans.
  • B
    Between nitrates and phosphates, phosphates are less abundant in earth's crust.
  • ✓
    Between nitrates and phosphates, nitrates are less abundant in earth's crust.
  • D
    Oxidation of nitrates is possible in soil.
✓

Answer

Correct option: C.
Between nitrates and phosphates, nitrates are less abundant in earth's crust.
Nitrates are less abundant than phosphates in the earth's crust because they are soluble in water. Moreover they can also be reduced by numerous microbes present in earth's crust.

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