The d and f-Block Elements questions
808 published questions with worked solutions.
- In the given chemical reaction, colors of the Fe^ 2+ and Fe^ 3+ ions, are respectively : 5Fe^ 2+ +MnO^ 4- +8H^+ Mn^ 2+...
- Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Size of Bk^...
- Given below are two statements : Statement I : The E^0 value for Ce^ 4+ /Ce^ 3+ is + 1.74 V. Statement II : Ce is more stable in...
- In the ground state of atomic Fe(Z = 26), the spin-only magnetic moment is______ 10^ -1 BM. (Round off to the Nearest Integer)....
- What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25 , in it's aqueous solution ?
- The set having ions which are coloured and paramagnetic both is -
- The aqueous solution containing which one of the following ions will be colourless ? (Atomic no. : Sc = 21, Fe = 26, Ti = 22, Mn...
- The main reason for larger number of oxidation states exhibited by the actinides than the corresponding lanthanides, is :
- The number of f electrons in the ground state electronic configuration of Np (Z = 93) is_________. (Nearest integer)
- Which one of the following lanthanides exhibits +2 oxidation state and diamagnetic nature ? (Given Z for Nd = 60, Yb = 70, La =...
- The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is_______ BM.
- Given below are two statements: Statement I : CeO_2 can be used for oxidation of aldehydes and ketones. Statement II : Aqueous...
- The spin only magnetic moments (in BM) for free Ti^ 3+ , V^ 2+ and Sc^ 3+ ions respectively are (At.No. Sc : 21, Ti : 22, V : 23)
- The number of 4f electrons in the ground state electronic configuration of Gd^ 2+ is_________.
- Which one of the following lanthanoids does not form MO_2? [M is lanthanoid metal]
- Metals generally melt at very high temperature. Amongst the following, the metal with the highest melting point will be
- The spin-only magnetic moment value of M^ 3+ ion (in gaseous state) from the pairs Cr^ 3+ /Cr^ 2+ , Mn^ 3+ /Mn^ 2+ , Fe^ 3+ /Fe^...
- Cerium (IV) has a noble gas configuration. Which of the following is correct statement about it?
- The spin-only magnetic moment value of the most basic oxide of vanadium among V_ 2 O_ 3 , V_ 2 O_ 4 and V_ 2 O_ 5 is _____ B.M.
- The correct statement(s) about Cr^ 2+ and Mn^ 3+ is(are) [Atomic numbers of Cr = 24 and Mn = 25]
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