Questions asked by Surbhi Goel

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• Which of the following orbitals described by 3 quantum numbers will have different energy in absence of magnetic & electric fields? A) n=3, l=1, m=0 B) n=3, l=2, m=0 C) n=3, l=2, m=2 D) n=3, l=2, m=1
  
• An electon from 1 Bohr stationary orbit can go to next higher orbit by A) absorption of any electromagnetic radiation B) absorption of electromagnetic radiation of particular frequency?
  
• Which metal will form binary halide, `"MX"_2` ?
  
• Which is least stable?
  
• Determine unit vector which is perpendicular to both A=2i+j+k and B=i-j+2k?
  
• If `tanx=(sqrt (3)+1)/(sqrt (3)-1)`. What is x?
  
• If tanx =3/4, π < x <3 π /2, find the values of sin (x/2), cos (x/2) and tan (x/2)?
  
• Which has larger intermolecular forces-NH3 or H2O?
  
• Plz answer?
  
• I thought answer is C but it is A. Why is that so? And what does opposite side mean?
  
• What is distance between lines `x+2y=5` and `2x+4y=7`?
  
• If a process is taking place at constant temperature and pressure, delta E=0 but what about delta H?
  
• L=4 subshell??