At a fraternity party a 17-year-old male places a paper bag over his mouth and breathes in and out of the bag. As he continues to breathe into this bag, his rate of breathing continues to increase. Which of the following is responsible for the increased ventilation?

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#Question id: 20156

#XL - P Chemistry

At 200°C hydrogen molecules have velocity 105 cm sec^–1. The de-Broglie wavelength in this case is approximately

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#Question id: 20157

#XL - P Chemistry

The number of electrons in 3d shell for element with atomic number 26 is

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#Question id: 20158

#XL - P Chemistry

In a set of degenerate orbitals the electrons distribute themselves to retain similar spins as far as possible. This statement is attributed to

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#Question id: 20159

#XL - P Chemistry

The ground state configuration of Fe³⁺ ion in gaseous state is: (At. No. of Fe = 26)

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#Question id: 20160

#XL - P Chemistry

If uncertainty in the position of electron is zero, the uncertainty in its momentum would be

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#Question id: 20161

#XL - P Chemistry

The radius of second Bohr’s orbit is