Question
Explain the structure of phosphine.
✓
Answer
In phosphine, phosphorus shows $sp_3$ hybridisation. Three orbitals are occupied by bond pair and fourth comer is occupied by lone pair of electrons. Hence, bond angle is reduced to $94^o$. Phosphine has a pyramidal shape.
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→1. Write down the structures of ' $X$ ' and ' $Y$ '
2. Name the product when ' X ' reacts with dii NaOH .
3. Write down the equations for the reaction involved.
Calculate the emf of the cell in which the following reaction takes place
$
Ni ( s )+2 Ag ^{+}(0.002 M )-{ }^{\prime} Ni ^{2+}(0.160 M )+2 Ag ( s )
$
Given that $E _{\text {cell }}^{\circ}=1.05 V$
→$
Ni ( s )+2 Ag ^{+}(0.002 M )-{ }^{\prime} Ni ^{2+}(0.160 M )+2 Ag ( s )
$
Given that $E _{\text {cell }}^{\circ}=1.05 V$