Which of the following topoisomerases is/are involved in case of E.Coli Replication ? 

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#Question id: 19497

#XL - P Chemistry

Isotopes of an element have ————–

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#Question id: 19498

#XL - P Chemistry

Which of the following pairs represents isobars?

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#Question id: 19499

#XL - P Chemistry

 The atomic orbital is ————–

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#Question id: 19500

#XL - P Chemistry

Principal, Azimuthal and magnetic quantum numbers are respectively related to:

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#Question id: 19501

#XL - P Chemistry

The electronic configuration of chromium (Z=24) is:

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#Question id: 19502

#XL - P Chemistry

According to Aufbau principle a new electron enters the orbitals when: