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Day 324: JEE Mains Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    The d- and f-Block Elements. Asked once: 25 Jan 2023 (same type asked 8 times) See all 8 of this type

    52
    How many of the following metal ions have similar value of spin only magnetic moment in gaseous state? (Given: Atomic number: V, 23; Cr, 24; Fe, 26; Ni, 28) V3+,Cr3+,Fe2+,Ni3+V^{3 +},Cr^{3 +},Fe^{2 +},Ni^{3 +}

  2. Question 2

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 10 Apr 2023 (same type asked 8 times) See all 8 of this type

    129
    The decreasing order of hydride affinity for following carbocations is: (A) (B) (C) (D) Choose the correct answer from the options given below:

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  3. Question 3

    The d- and f-Block Elements. Asked once: 2021 Paper 5 (same type asked 8 times) See all 8 of this type

    38
    Given below are two statements: Statement I: The E∘E^{\circ} value of Ce4+/Ce3+Ce^{4 +}/Ce^{3 +} is +1.74 V+ 1.74\text{ }V. Statement II: Ce is more stable in Ce4+Ce^{4 +} state than Ce3+Ce^{3 +} state. In the light of the above statements, choose the most appropriate answer from the options given below

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  4. Question 4

    Chemical Bonding and Molecular Structure. Asked once: 6 Apr 2023 (same type asked 8 times) See all 8 of this type

    146
    The number of species having a square planar shape from the following is____ XeF4,SF4,SiF4,BF4−,BrF4−,[Cu(NH3)4]2+XeF_{4},SF_{4},SiF_{4},BF_{4}^{-},BrF_{4}^{-},\left\lbrack Cu\left( NH_{3} \right)_{4} \right\rbrack^{2 +}, [FeCl4]2−,[PtCl4]2−\left\lbrack FeCl_{4} \right\rbrack^{2 -},\left\lbrack PtCl_{4} \right\rbrack^{2 -}

  5. Question 5

    Alcohols, Phenols and Ethers. Asked once: 6 Apr 2023 (same type asked 8 times) See all 8 of this type

    126
    The strongest acid from the following is

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