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Phosphoric Fertilisers

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There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms large number of complexes with transition metal ions. Hybridisation easily explains the case of sigma donation capability of $N H_{3}$ and $P H_{3}$ . Phosphine is a flammable gas and is prepared from white phosphorus.

Among the following, the correct statement is

A

Phosphates have no biological significance in humans

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B

Between nitrates and phosphates, phosphates are less abundant in earth's crust

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C

Between nitrates and phosphates, nitrates are less abundant in earth's crust

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D

Oxidation of nitrates is possible in soil

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Solution

The correct option is C Between nitrates and phosphates, nitrates are less abundant in earth's crust
Due to greater solubility in water and prone to microbial attack, nitrates are less abundant in earth's crust.

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Q. There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms large number of complexes with transition metal ions. Hybridisation easily explains the case of sigma donation capability of

N H_{3}

P H_{3}

. Phosphine is a flammable gas and is prepared from white phosphorus.

Among the following, the correct statement is

Q. There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms large number of complexes with transition metal ions. Hybridisation easily explains the case of sigma donation capability of

N H_{3}

P H_{3}

. Phosphine is a flammable gas and is prepared from white phosphorus.

Which phosphorous on reaction with NaOH gives

P H_{3}

as one of the product. This is a

Q. There are some deposits of nitrates and phosphates in earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms large number of complexes with transition metal ions. Hybridisation easily explains the case of sigma donation capability of

N H_{3}

P H_{3}

. Phosphine is a flammable gas and is prepared from white phosphorus.

Which phosphorous on reaction with NaOH gives

P H_{3}

as one of the product. This is a

Q. ______________ are found in nitrates, phosphates of metals.

Q. Release of phosphates and nitrates in water bodies (rivers and lakes) leads to

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Phosphoric Fertilisers

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