मराठी

The least basic hydroxide from the following is: -

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प्रश्न

The least basic hydroxide from the following is:

पर्याय

  • Pr(OH)3 (Z = 59)

  • Sm(OH)3 (Z = 62)

  • Ho(OH)3 (Z = 67)

  • La(OH)3 (Z = 57)

MCQ

उत्तर

Ho(OH)3 (Z = 67)

Explanation:

Since the ionic size decreases from La3+ to Lu3+, the basicity of hydroxides decreases in the following order:

La(OH)3 > Pr(OH)3 > Sm(OH)3 > Ho(OH)3

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