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TLS Online TPP Program

#Question id: 4958

What is true of the fossil record of mammalian origins?

#XL - S Microbiology

  1. It is a good example of punctuated equilibrium.

  2. It shows that mammals and birds evolved from the same kind of dinosaur.

  3. It includes transitional forms with progressively specialized teeth.

  4. It indicates that mammals and dinosaurs did not overlap in geologic time.

More Questions
TLS Online TPP Program

#Question id: 20242

#XL - P Chemistry

The correct order of the O – O bond length in O2 , H2O2 and O3is
TLS Online TPP Program

#Question id: 20243

#XL - P Chemistry

The bond order of O -2  is
TLS Online TPP Program

#Question id: 20244

#XL - P Chemistry

Choose the incorrect statement.
TLS Online TPP Program

#Question id: 20245

#XL - P Chemistry

Which of the following is not paramagnetic ?
TLS Online TPP Program

#Question id: 20246

#XL - P Chemistry

Which one of the following compound has sp2 hybridization ?
TLS Online TPP Program

#Question id: 20247

#XL - P Chemistry

C2H6 (g) + 3.5 O2 (g) →2CO2 (g) + 3H2O (g)
ΔSvap (H2O, l) = x1 cal K–1 (boiling point + T1)
ΔHf (H2O, l) = x2
ΔHf (CO2) = x3
ΔHf (C2H6) = x4
Hence ΔH for the reaction is –