Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202318 May 2023Morning ShiftChemistryd and f Block ElementsActual

Which of the following are correct? (i) V ²⁺ liberates hydrogen from a dilute acid (ii) The earlier members of lanthanide series behave more like aluminium (iii) The 'silver' UK coins are made of Cu / Ni alloy (iv) The maximum oxidation state exhibited by Neptunium is +7

Options

  1. A(i) (iii) only
  2. B(ii) (iv) only
  3. C(i) (iii) (iv) only
  4. D(i) (ii) (iii) only

Correct answer

C. (i) (iii) (iv) only

Step-by-step solution

V ²⁺ is a strong reducing agent and liberates hydrogen from a dilute acid. Thus, (i) is correct. In chemical behaviour, the earlier members of the lanthanide series behave more like calcium. Thus, (ii) is incorrect. Silver UK coins = Cu + Ni alloy. Thus, (iii) is correct. Neptunium (Np) belongs to the actinides series and has the configuration 5 f ^4 6 ~d ^ 1 7 ~s ^2 because of which it can show a maximum of +7 oxidation state. Thus, (iv) is correct.

Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Pick out the correct option Assertion(A): Mercury is not considered as a transition element Reason (R): Mercury is a liquid 2026Which of the following does not correctly represent the order of the property indicated against it? 2026The element with the highest third ionisation enthalpy is: 2026The product and its colour when MnO₂ is fused with KOH in presence of O₂ : 2026The ion that has a spin only magnetic moment of 5.9 BM is: 2026Which one of the following species will impart colour to an aqueous solution? 2026The basic character of transition metal monoxides follows the order: 2026K ₂ Cr ₂ O ₇ on heating with aqueous NaOH gives ------------------------- 2026 Full d and f Block Elements list All AP EAMCET PYQs