MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

What are alloys? Name an important alloy which contains some lanthanoid metals. Mention its uses.

Important Questions on d- and f-Block Elements

EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 35
What are inner-transition elements? Decide which of the following atomic numbers are the atomic numbers of the inner-transition elements: 29, 59, 74, 95, 102, 104
MEDIUM
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 36
The chemistry of the actinoid elements is not so smooth as that of the lanthanoids. Justify this statement by giving some examples from the oxidation state of these elements.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 37
Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 38
Use Hund's rule to derive the electronic configuration of Ce3+ ion, and calculate its magnetic moment on the basis of 'spin-only' formula.
MEDIUM
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 39
Name the members of the lanthanoid series which exhibit +4 oxidation state and those which exhibit +2 oxidation states. Try to correlate this type of behaviour with the electronic configuration of these elements.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 40
Compare the chemistry of the actinoids with that of lanthanoids with reference to their electronic configuration.
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 40
Compare the chemistry of the actinoids with that of lanthanoids with reference to the oxidation states.
MEDIUM
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 8 - d- and f-Block Elements>REVIEW EXERCISES>Q 1
Explain briefly how +2 state becomes more and more stable in the first half of the first row transition elements with increasing atomic number?