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Phosphine, acetylene and ammonia can be ...

Phosphine, acetylene and ammonia can be formed by treating water with

A

`Mg_3 P_2, Al_4 Cl_3, Li_3 N`

B

`Ca_3 P_2, CaC_2, Mg_3 N_2`

C

`Ca_3 P_2, CaC_2, CaCN_2`

D

`Ca_3 P_2, Mg_2 C, NH_4 NO_3`

Text Solution

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The correct Answer is:
B
`Ca_3 P_2 + 6H_2 O rarr 3 Ca(OH)_2 + 2 PH_3`
`CaC_2 + 2H_2 O rarr Ca(OH)_2 + C_2 H_2`
`Mg_3 N_2 + 6 H_2 O rarr 3 Mg(OH)_2 + 2 NH_3`.
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  8. Cl-P-Cl bond angles in PCl5 molecule are

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  9. Hyarolysis of NCl3 gives NH3 and X. Which of the following is X ?

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  15. Phosphine, acetylene and ammonia can be formed by treating water with

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  16. The cyanide ion CN and N(2) are isoelectronic, but in contrast to CN^(...

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  17. Nitrogen forms N(2) but phosphorous when forms P(2) gets readily conve...

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  18. In NO(3)^(-) ion, the number of bond pair and lone pair of electrons o...

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  19. Blue liquid which is formed at - 30^@ C by mixing of two gases is.

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  20. The element which forms oxides in all oxidation states +1 to +5 is.

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