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TLS Online TPP Program

#Question id: 20151

Sodium chloride imparts a yellow colour to the Bunsen flame. This can be interpreted due to the

#XL - P Chemistry
  1. low ionization energy of sodium
  2. sublimation of metallic sodium to give yellow vapour
  3. emission of excess energy absorbed as a radiation in the visible region
  4. photosensitivity of sodium
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TLS Online TPP Program

#Question id: 15182

#XL - Q Biochemistry

Which of the following types of effect are responsible for lowering the efficiency of electrophoresis?
TLS Online TPP Program

#Question id: 20053

#XL - P Chemistry

Atoms complete octet in valence shell electron during the bond formation. This postulate was proposed by which scientist ?
TLS Online TPP Program

#Question id: 4569

#XL - S Microbiology

Which of the following must exist in a population before natural selection can act upon that population?
TLS Online TPP Program

#Question id: 5287

#XL - S Microbiology

Interrupted matting of different Hfr strain with F- E.coli cell resulting generation of following strain  Order of gene is
TLS Online TPP Program

#Question id: 20218

#XL - P Chemistry

Mention AB4F2 type molecule.