d- and f- Block Elements — practice questions
52 curated practice questions from d- and f- Block Elements (Chemistry NEET, NTA Exams) — 14 hard, 17 easy, 21 medium. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Which of the following ions in aqueous solution is not coloured?
- The effect of lanthanoid contraction in the lanthanoid series of elements by and large means:
- In the periodic table, metals usually used as catalysts belong to:
- The radius of La 3 + (Atomic number of La = 57) is 1.06 . Which one of the following given values will be closest to…
- Fe(OH) 3 can be separated from Al(OH) 3 by the addition of:
- Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation…
- Consider the hydrated ions of Ti 2+ , V 2+ , Ti 3+ and Sc 3+ . The correct order of their spin-only magnetic moments is:
- Which of the following shows maximum number of oxidation states?
- A solution of a salt on treatment with NH 4 SCN gives red coloured compound and on treatment with a solution of K 4…
- A red solid is insoluble in water. However it becomes soluble if some KI is added to water. Heating the red solid in a…
- Ce 3 + , La 3 + , Pm 3 + and Yb 3 + have ionic radii in the increasing order as:
- The incorrect statement in respect of chromyl chloride test is:
- Which of the following compound on reaction with NaOH and Na 2 O 2 gives yellow colour?
- Which of the following ionic species will impart colour to an aqueous solution?
- Among the following ions, which one has the highest paramagnetism?
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The basic character of the transition metal monoxides follows the order:
- Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in…
- The blue colour produced on adding H 2 O 2 to ice cold acidified K 2 Cr 2 O 7 is due to the formation of:
- The transition element that has lowest enthalpy of atomisation, is:
- Which of the following dissolves in concentrated NaOH solution?
- In context with the transition elements, which of the following statement is incorrect?
- What is the general electronic configuration for 2nd row transition series?
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT-1…
- The calculated spin only magnetic moment of Cr 2+ ion is
- Cobalt salt + KNO _ 2 + CH _ 3 COOH Yellow ppt. The yellow precipitate is:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- In context of the lanthanoids, which of the following statement is not correct?
- In which of the following compounds manganese shows maximum radius?
- Which of the following group of transition metals is called coinage metals?
- Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following…
- AIF 3 is soluble in HF only in presence of KF. It is due to the formation of
- Which of the following biomolecules contain non-transition metal ion?
- A red solid is insoluble in water. However, it becomes soluble, if some KI is added to water. Heating the red solid in…
- Calomel (Hg 2 Cl 2 ) on reaction with ammonium hydroxide gives:
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- The aqueous solution containing which one of the following ions will be colourless? (Atomic no.: Sc = 21, Fe = 26, Ti =…
- Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statement about cerium is incorrect?
- Which of the following arrangements does not represent the correct order of the property stated against it?
- The E Θ values for Al + /Al = +0.55 V and Tl + /Tl = -0.34 V Al 3+ /Al = -1.66 V and Tl 3+ /Tl = +1.26 V Identify the…
- Which of the following pairs is expected to exhibit same colour in aqueous solution?
- An unknown inorganic compound (A) gave the following reactions: The compound (A) on heating gave a residue and a…
- Asse rtion: Cu 2+ iodide is not known. Reason: Cu 2+ oxidises I – to iodine.
- A metal nitrate gives black precipitate with KI solution. On adding excess of KI, an orange-coloured solution is…
- A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a…
- The only cations present in a slightly acidic solution are Fe 3 + , Zn 2 + and Cu 2 + . The reagent which when added in…
- Potassium chromate solution is added to an aqueous solution of a metal chloride. The precipitate thus obtained are…
- A transition metal ion exists in its highest oxidation state. It is expected to behave as:
- The element that usually does not show variable oxidation states is:
- Which of the following statement/s is/are correct for 3d-transition element?
- For the four successive transition elements (Cr, Mn, Fe and Co), the stability of +2 oxidation state will be there in…
- The fourteen elements collectively placed in 3rd group and 7th period are called: