Fill in the blank :
Salts of …………. (normal/transition) elements are generally coloured.

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Solution

A molecule or ion that may react as both an acid and a base is known to be amphoteric.
Salts of transition elements are generally coloured.
Transition elements like, chromium, copper, zinc, iron etc.
For example : Salts like Copper (II) carbonate is green in colour, Copper (II) sulphate is blue in colour etc.

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Q. Fill in the blanks:
(a) Salts of ________ [normal / transition] elements are generally coloured. From the ions K¹⁺, Cr³⁺, Fe²⁺, Ca²⁺, SO₃²⁻, MnO₄¹⁻, NO₃¹⁻ the ions generally coloured are _________ .
(b) The hydroxide which is soluble in excess of NaOH is ________ [Zn(OH)₂ / Fe(OH)₃ / Fe(OH)₂].
(c) The salt which will not react with NH₄OH solution ________ [ZnCl₂ / CuCl₂ / NH₄Cl / FeCl₂].
(d) The substance/ s which react/ s with hot conc. NaOH solution and undergoes a neutralization reaction ________ [Al₂O₃ / Al / Al(OH)₃].
(e) To distinguish soluble salts of zinc and lead _________ [NaOH / NH₄OH] can be used.

The element in which electrons are progressively filled in 4f - orbital are called
(a) actinoids (b) transition elements (c) Lanthanoids (d) halogens

Generally, transition elements form coloured salts due to the presence of unpaired electrons. Which of the following compounds will be coloured in solid state?

Q. Generally transition elements for coloured salts due to the presence of unpaired electrons. Which of the following compound will be coloured in solid state?

Q. Generally, transition elements and their salts are colored due to the presence of unpaired electrons in metal ions. Which of the following compounds are colored?

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Fill in the blank :Salts of …………. (normal/transition) elements are generally coloured.

Fill in the blank :
Salts of …………. (normal/transition) elements are generally coloured.