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Which series of reactions correctly represent chemical relations related to iron and its compound?

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Important Questions on The d- and f-Block Elements

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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 41
The colour of KMnO4 is due to
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 42
Chloro compound of Vanadium has only spin magnetic moment of 1.73 BM. This Vanadium chloride has the formula:
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 43
Copper becomes green when exposed to moist air for a long period. This is due to :
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 44
Which of the following statements is false?
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 45
Which one of the following species is stable in aqueous solution?
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 46
The pair of compounds having metals in their highest oxidation state is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 47
When XO2 is fused with an alkali metal hydroxide in presence of an oxidizing agent such as KNO3; a dark green product is formed which disproportionate in acidic solution to afford a dark purple solution. X is:
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Alpha Question Bank for Engineering: Chemistry>Chapter 20 - The d- and f-Block Elements>Exercise-3>Q 48
The transition elements that has the lowest enthalpy of atomisation is: