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प्रश्न
Give two similarities in the properties of Sc and Zn.
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उत्तर
Sc and Zn both form colourless compound and are diamagnetic.
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संबंधित प्रश्न
Account for the following:
Cr2+ is a strong reducing agent.
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Which element is a strong oxidising agent in +3 oxidation state and why?
Describe the oxidising action of potassium dichromate and write the ionic equation for its reaction with iodide.
Write the factors which are related to the colour of transition metal ions.
How would you account for the following?
Zr (Z = 40) and Hf (Z = 72) have almost identical radii.
Although Zirconium belongs to 4d transition series and Hafnium to 5d transition series even then they show similar physical and chemical properties because ______.
Answer the following question:
Which element of the first transition series has highest third ionisation enthalpy?
Write the number of unpaired electrons in Cr3+.
(Atomic number of Cr = 24)
Give a reason for the following:
Zinc, cadmium and mercury are considered as d-block elements but not regarded as transition elements.
Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following point:
Atomic sizes
