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Cuprous ion is colourless while cupric ion is coloured because ______.

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Important Questions on d- and f-Block Elements

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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 22
The catalytic activity of the transition metals and their compounds is described by _____.
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 23
Which of the following would be diamagnetic?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 24
Which of the following has highest paramagnetic character?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 25
Which one of the following sets CORRECTLY represent the increase in the paramagnetic property of the ions?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 26
Which of the following pair will have equal magnetic moment value?
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 27
For a transition metal ion having seven electrons in its d-subshell, the magnetic moment will be ______.
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 28
The yellow colour of chromates changes to orange on acidification due to the formation of ______.
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MHT-CET TRIUMPH Chemistry Multiple Choice Questions Part - 2 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 3 - d- and f-Block Elements>Critical Thinking>Q 29
Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction, the oxidation number of chromium ______.