University:
Loyola University Maryland
Course:
CH 101 | General Chemistry I
Academic year:

2024
Views:

121

Pages:

2
Author:

Natasya J.

Some Important points Regarding N family! V. Imp prictogen family Holme Signal- A mix of Cac₂ (calcium carbide) and [Calcium phosphide] is known as It is used to give signals Caz P2 Holme signal. to ships at night. Ca C₂ + 120 → Ca(OH)2 + C₂H₂ fire Acetylene Caz P2 + 420 → Ca(On)+ PH₃ smoke phosphine Ca C₂ hydrolysis give Acetylene (C₂H₂) which catches fire easily on hydrolysis give producy a while Calcium phosphide Casp phosphine gas (PH₃). which eot of smoke as contains a impurity of phosphorus dihydride (P2H4). combustile Phosphine are produces special rings of smoke which as "Vortex Rings. This impurity of P2H4 follow ing caw be removed Ay PH3 + HI PHy I phosphonium iodide CBSE PHUI + KOH PH₃+ KI + H₂D pure phosphine. 2 IT Ca O dehydrated CaCl2 i's wed to dehydrate NH3 agents like are not used to Conc. H2SO4, other P4010 and dehydrate ammonia because they all react with Ammonia. NH3 + H2 SO4 (NH4)2SO4 Callz + 4NH3 Ea 24NH3 P4010 N113 - (NH4)2 POY ③ when then ammonia is to Rated with Nessler's reafart a broven coloured ppt of "iodide of Million's вак" oftained. is K2 Hg I + KOH + NH3 I-SH H2N-HS H₂N Hg Hy I [rodide of million's base) brown complex. 0 H-NHLI @liq. NM3 due to presence a high heat of vapouristlon of intermolecular H-Bonding. 13 kept in stopper bottles because • readily react with it moisture present contary iis aid.