Verified Solution • 2025–26 Session moderate

QAIPMT-2007-Ch-2292: NEET 2007 Chemistry - Class 12 AIPMT-2007-Ch-2292 Solution: \(CH_3-CHCl-CH_2-CH_3\) has a chiral centre. Which one of the…

CH3−CHCl−CH2−CH3CH_3-CHCl-CH_2-CH_3 has a chiral centre. Which one of the following represents its R-configuration?

Multiple Choice Options

  • A Lanthanoid contraction is the accumulation of successive shrinkages.
  • B As a result of lanthanoid contraction, the properties of 4d series of the transition elements have no similarities with the 5d series of elements.
  • C Shielding power of 4 ff f electrons is quite weak.
  • D There is a decrease in the radii of the atoms or ions as one proceeds from La to Lu.

Step-by-Step Verified Solution

In each vertical column of transition elements, the elements of second and third transition series resemble each other more closely than the elements of first and second transition series on account of lanthanide contraction. Hence the properties of elements of 4d series of the transition elements resemble with the properties of the elements of 5d series of the transition elements.

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