A solution containing 28 g of phosphorus in 315 g CS2(b.p. 46.3oC) boils at 47.98oC. If Kb for CS2 is 2.34 K kg mol−1. The formula of phosphorus is (at. mass of P = 31).
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
P6
b
P4
c
P3
d
P2
answer is B.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
ΔTb=mKb=wM×1000W×KbΔTb=47.98−46.3=1.681.68=28M×1000315×2.34M=28×1000×2.34315×1.68=123.73Atomicity = Mol.wt.At.wt.=123.7331=3.99~ 4.0So, Molecule is =P4