PYQ Vault

Day 117: JEE Mains Chemistry

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

  1. Question 1

    The d- and f-Block Elements. Asked once: 29 Jan 2024 (same type asked 8 times) See all 8 of this type

    133
    Which of the following acts as a strong reducing agent? (Atomic number: Ce=58,Eu=63Ce = 58,Eu = 63, Gd=64,Lu=71)Gd = 64,Lu = 71)

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  2. Question 2

    Chemical Bonding and Molecular Structure. Asked once: 4 Apr 2024 (same type asked 8 times) See all 8 of this type

    140
    The number of species from the following that have pyramidal geometry around the central atom is _____
    S2O32−,SO42−,SO32−,S2O72−S_{2}O_{3}^{2 -},SO_{4}^{2 -},SO_{3}^{2 -},S_{2}O_{7}^{2 -}

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 27 Jan 2024 (same type asked 8 times) See all 8 of this type

    42
    The ascending order of acidity of −OH- OH group in the following compounds is: (a) Bu−OHBu - OH (b) (c) (d) (e) Choose the correct answer from the options given below:

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  4. Question 4

    The p-Block Elements. Asked once: 28 Jan 2026 S1 (same type asked 7 times) See all 7 of this type

    36
    Regarding the hydrides of group 15 elements EH3EH_{3} (E = N, P, As, Sb), select the correct statement from the following: (A) The stability of hydrides decreases down the group. (B) The basicity of hydrides decreases down the group. (C) The reducing character increases down the group. (D) The boiling point increases down the group. Choose the correct answer from the options given below:

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  5. Question 5

    Structure of Atom. Asked once: 4 Apr 2026 S2 (same type asked 7 times) See all 7 of this type

    27
    The species having identical radii according to the Bohr's theory are : (A) H (first orbit) (B) He+{He}^{+}(first orbit) (C) He+{He}^{+}(second orbit) (D) Li2+{Li}^{2 +} (first orbit) (E) Be3+{Be}^{3 +} (Second orbit) Choose the correct answer from the options given below :

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