Verified Solution • 2025–26 Session moderate

QAIPMT-2005-Ph-2523: NEET 2005 Chemistry - Class 12 AIPMT-2005-Ph-2523 Solution: The angular resolution of a 10 cm diameter telescope at a…

The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 A˚\text{\AA} is of the order of 106 rad10^6\ \text{rad} 10−2 rad10^{-2}\ \text{rad} 10−4 rad10^{-4}\ \text{rad} 10−6 rad10^{-6}\ \text{rad}.

Multiple Choice Options

  • A [Zn(NH 3 ) 6 ] 2+
  • B [Cr(NH 3 ) 6 ] 3+
  • C [Co(NH 3 ) 6 ] 3+
  • D [Ni(NH 3 ) 6 ] 2+

Step-by-Step Verified Solution

In [Co(NH 3 ) 6 ] 3+ Co +3 = [ 18 Ar] 3d 6 4s 0 [Co(NH 3 ) 6 ] 3+ is an inner orbital complex as well as diamagnetic in behaviour (due to absence of unpaired electrons).

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