Single Choice

Elements which generally exhibit variable oxidation states and form colored ions are ___________.

Ametalloids
Btransition elements
Correct Answer
Cnon-metals
Dgases

Solution

Transition elements have vacant d orbitals and the energy gap between d orbitals is very less. So transition elements exhibit variable oxidation state and form coloured ions as these elements emit radiations due to excitation of d electrons.

SIMILAR QUESTIONS

d - block and f - block Elements

Transition metals are often paramagnetic owing to:

d - block and f - block Elements

Transition metals are less reactive than alkali metals because they have:

d - block and f - block Elements

Identify the metal that forms colourless compounds.

d - block and f - block Elements

$$V_2O_5$$ reacts with alkalies as well as acids to give:

d - block and f - block Elements

Metallic radii of some transition elements are given below. Which of these elements will have the highest density? Element $$Fe$$ $$Co$$ $$Ni$$ $$Cu$$ Metallic radii/pm 126 125 125 128

d - block and f - block Elements

Which of the following example is not correctly matched?

d - block and f - block Elements

Which one of the following ions is the most stable in aqueous solution? (At. No. are: $$ Ti = 22, V = 23, Cr = 24, Mn = 25$$)

d - block and f - block Elements

The elements of $$3d$$ transition series are given as : $$Sc,\ Ti,\ V,\ Cr,\ Mn,\ Fe,\ Co,\ Ni,\ Cu,\ Zn$$ Which element is soft and why?

d - block and f - block Elements

Name the type of elements , which have their Two outermost shell incomplete - ...............

d - block and f - block Elements

The highest magnetic moment is shown by the transition metal ion with which of the following outermost electronic configuration?

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