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QAIPM-2011-Ch-1877: NEET 2011 Chemistry - Class 12 AIPM-2011-Ch-1877 Solution: By what factor does the average velocity of a gaseous molecule…
By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled? 2.0 2.8 4.0 1.4
Multiple Choice Options
- A [Ti(NH 3 ) 6 ] 3+
- B [Cr(NH 3 ) 6 ] 3+
- C [Co(NH 3 ) 6 ] 3+
- D [Zn(NH 3 ) 6 ] 2+
Step-by-Step Verified Solution
Ti 3+ _ [Ar] 3d 1 4s 0 (1 unpaired electron)
Cr 3+ _ [Ar] 3d 3 4s 0 (3 unpaired electrons)
Co 3+ _ [Ar] 3d 6 4s 0 (0 unpaired electrons because of pairing)
Zn 2+ _ [Ar] 3d 10 (no unpaired electrons)
[Cr(NH 3 ) 6 ] 3+ exhibits highest paramagnetic behaviour as it contains 3 unpaired electrons.