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There are some deposits of nitrated and ...

There are some deposits of nitrated and phosphates in the earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under laboratory conditions but microbes do it easily. Ammonia forms a large number of complexes with transition metal ions. Hybridisation easily explains the ease of sigma donation capability of `NH_3` and `PH_3`. Phosphine is a flammable gas and is prepared from white phosphorous.
Which of the following statement is correct ?

A

Between `NH_3` and `PH_3, NH_3` is a better electron donar because the lone pair of electrons occupies spherical s-orbital and is less directional.

B

Between `NH_3` and `PH_3, PH_3` is a better electron donar because the lone pair of electrons occupies `sp^3`-orbital and is more directional.

C

Between `NH_3` and `OH_3,NH_3`, is a better electron donar because the lone pair of electrons occupies `sp^3`-orbital and is more directional.

D

Between `NH_3` and `PH_3, PH_3` is a better electron donar because the lone pair of electrons occupies spherical s-orbital and is less directional.

Text Solution

Verified by Experts

The correct Answer is:
C
Both `NH_3` and `PH_3` are `sp^3` hybridised with pyramidal in shape.
`NH_3` is a better electron donor than phosphine because the lone pair of electrons occupies the `sp^3` -orbital and is more directional. It is easily donatable. Due to small size of `N`, the lone pair electron density is higher in `NH_3`, than in `PH_3`, so `NH_3` is better electron donor.
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There are some deposits of nitrated and phosphates in the earth's crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under laboratory conditions but microbes do it easily. Ammonia forms a large number of complexes with transition metal ions. Hybridisation easily explains the ease of sigma donation capability of NH_3 and PH_3 . Phosphine is a flammable gas and is prepared from white phosphorous. White phosphorous on reaction with NaOH gives PH_3 as one of the products. This is a.

There are some deposits of nitrates and phosphate 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. Hybridization easily explains the ease of sigma donation capability of NH_(3) and PH_(3) . Phosphine is a flammable gas and is prepared from white phosphorous. White phosphorus on reaction with NaOH gives PH_(3) as one of the products. This is a:

There are some deposits of nitrates and phosphates. 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 metals ions. Hybridization easily explains the ease of sigma donation capacity of NH_(3) and PH_(3) . Phosphine is a flamable gas and is prepared from white phosphorus. Among the following the correct statement is