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TLS Online TPP Program

#Question id: 20194

The emission spectrum of hydrogen is found to satisfy the expression for the energy change “E (in Joules) such that “E = 2·18 x 10–18 J where n1 = 1, 2, 3 ........ and n2 = 2, 3, 4,...... The spectral lines correspond to Paschen series it

#XL - P Chemistry
  1. n1 = 1 and n2 = 2, 3, 4 
  2. n1 = 3 and n2 = 4, 5, 6
  3. n1= 1 and n2= 3, 4, 5 
  4. n1 = 2 and n2 = 3, 4, 5
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TLS Online TPP Program

#Question id: 20070

#XL - P Chemistry

Number of nonbonding electron pair in XeF6, XeF4 and XeF2 respectively
TLS Online TPP Program

#Question id: 20071

#XL - P Chemistry

On keeping two cube of ice on each other which become one cube which factor is responsible for it ?
TLS Online TPP Program

#Question id: 20072

#XL - P Chemistry

Determine lattice energy of LiF(S) according to given data.
TLS Online TPP Program

#Question id: 20073

#XL - P Chemistry

Which of the following statement is incorrect for metallic bond ?
TLS Online TPP Program

#Question id: 20074

#XL - P Chemistry

Why lattice energy of NaCl > KBr ?
TLS Online TPP Program

#Question id: 20075

#XL - P Chemistry

Number of H - bond form by unpaired electrons of liquid NH3 , H2O and HF respectively are