The d and f-Block Elements questions
808 published questions with worked solutions.
- Given below are some of the statements about Mn and Mn_2O_7. Identify the correct statements A. Mn forms the oxide Mn_2O_7 in...
- Given below are two statements : Statement I : The number of pairs, from the following, in which both the ions are coloured in...
- Consider the following statements about manganate and permanganate ions. Identify the correct statements : A. The geometry of...
- Lanthanoid ions with 4f⁷ configuration are : (A) Eu2+ (B) Gd3+ (C) Eu3+ (D) Tb3+ (E) Sm2+ Choose the correct answer from the...
- Match List-I with List-II. List - I: (A) Bronze (B) Brass (C) UK silver coin (D) Stainless Steel List - II: (I) Cu, Ni (II) Fe,...
- The correct set of ions (aqueous solution) with same colour from the following is :
- Which of the following ions is the strongest oxidizing agent ? (Atomic Number of Ce = 58, Eu = 63, Tb = 65, Lu = 71]
- The correct option with order of melting points of the pairs (Mn, Fe), (Tc, Ru) and (Re, Os) is :
- The spin-only magnetic moment value of Mn^+ ion formed among Ni, Zn, Mn and Cu that has the least enthalpy of atomisation is...
- Among, Sc, Mn, Co and Cu, identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that...
- The metal ions that have the calculated spin only magnetic moment value of 4.9 B.M. are A. Cr²⁺ B. Fe²⁺ C. Fe³⁺ D. Co²⁺ E. Mn³⁺...
- Consider the following reactions A + NaCl+H_2SO_4 (Little amount) CrO_2Cl_2 + Side Products CrO_2Cl_2(Vapour) + NaOH B + NaCl +...
- The correct decreasing order of spin only magnetic moment values (BM) of Cu^+, Cu^ 2+ , Cr^ 2+ and Cr^ 3+ ions is :
- When XO_2 is fused with an alkali metal hydroxide in presence of an oxidizing agent such as KNO_3, a dark green product is formed...
- The lanthanide ion that would show colour is:
- The highest possible oxidation states of uranium and plutonium, respectively are:
- The maximum number of possible oxidation states of actinoides are shown by:
- The transition element that has lowest enthalpy of atomization, is:
- Consider the sequence: A 4KOH, O_2 2B + 2H_2O (B green); 3B 4HCl 2C + MnO_2 + 2H_2O (C purple); 2C H_2O, KI 2A + 2KOH + D . In...
- Match the metals (Column I) with the coordination compound(s)/enzyme(s) (Column II): List-I: (A) Co (B) Zn (C) Rh (D) Mg List-II:...
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