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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: 348

#XL - S Microbiology

Sulfur is in the same column of the periodic table as oxygen, but has electronegativity similar to carbon. Compared to water molecules, molecules of H2S will ________.
TLS Online TPP Program

#Question id: 20033

#XL - P Chemistry

The mass of one mole of electron is
TLS Online TPP Program

#Question id: 13221

#XL - R Botany

There are two main types of water-transporting cells in the Xylem,
TLS Online TPP Program

#Question id: 8922

#XL - R Botany

Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?
TLS Online TPP Program

#Question id: 2941

#XL - T Zoology

Centromeric Rec8 becomes cleaved during: