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Day 297: JEE Mains Chemistry

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

  1. Question 1

    Coordination Compounds. Asked once: 2021 Paper 17 (same type asked 5 times) See all 5 of this type

    56
    3 moles of metal complex with formula Co(en)2Cl3Co(en)_{2}Cl_{3} gives 3 moles of silver chloride on treatment with excess of silver nitrate. The secondary valency of Co in the complex is (Round off to the nearest integer)

  2. Question 2

    Biomolecules. Asked once: 26 Jul 2022 (same type asked 5 times) See all 5 of this type

    139
    Animal starch is the other name of:

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  3. Question 3

    Chemical Bonding and Molecular Structure. Asked once: 1 Feb 2024 (same type asked 5 times) See all 5 of this type

    129
    Select the compound from the following that will show intramolecular hydrogen bonding.

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  4. Question 4

    Coordination Compounds. Asked once: 31 Jan 2023 (same type asked 5 times) See all 5 of this type

    43
    Cobalt chloride when dissolved in water forms pink colored complex X‾\underline{X} which has octahedral geometry. This solution on treating with conc HClHCl forms deep blue complex, Y‾\underline{Y} which has a Z‾\underline{Z} geometry. X,YX,Y and ZZ, respectively, are

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  5. Question 5

    Chemical Kinetics. Asked once: 25 Jul 2022 (same type asked 5 times) See all 5 of this type

    55
    The half-life for the decomposition of gaseous compound AA is 240 s240\text{ }s when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half-life was found to be 4.0 min⁡4.0\text{ }\min. The order of the reaction is ____ (Nearest integer)