What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians

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 ?

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#Question id: 20072

#XL - P Chemistry

Determine lattice energy of LiF_(S) according to given data.

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#Question id: 20073

#XL - P Chemistry

Which of the following statement is incorrect for metallic bond ?

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#Question id: 20074

#XL - P Chemistry

Why lattice energy of NaCl > KBr ?

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#Question id: 20075

#XL - P Chemistry

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

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#Question id: 20076

#XL - P Chemistry

Which of the following pair is not in order for boiling point for 14, 15, 16 and 17 group ?