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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.
White phosphorous on reaction with `NaOH` gives `PH_3` as one of the products. This is a.

A

dimerisation reaction

B

disproportionation reaction

C

condensation reaction

D

precipitation reaction.

Text Solution

Verified by Experts

The correct Answer is:
B
Oxidation state increases as well as decreases. So this is called disproportionation reaction.
`P_4 + 3 NaOH + 3 H_2 O rarr 3 NaH_2 PO_2 + PH_3`
From `P_4 rarr NaH_2 PO_2 , 0 to + 1`
From `P_4 rarr PH_3 , 0 to - 3`.
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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 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 ?

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 ?

White phosphorous on reaction with NaOH gives PH_(3) and