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Day 150: JEE Mains Chemistry

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

  1. Question 1

    Chemical Bonding and Molecular Structure. Asked once: 29 Jan 2025 (same type asked 4 times) See all 4 of this type

    48
    The sum of sigma (σ)(\sigma) and pi(π)pi(\pi) bonds in Hex-1,3-dien-5-yne is ____\_\_\_\_ .

  2. Question 2

    Coordination Compounds. Asked once: 15 Apr 2023 (same type asked 4 times) See all 4 of this type

    49
    The complex with highest magnitude of crystal field splitting energy (Δ0)\left( \Delta_{0} \right) is

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  3. Question 3

    Electrochemistry. Asked once: 15 Apr 2023 (same type asked 4 times) See all 4 of this type

    59
    the number of correct statements from the following is_____ (A) Conductivity always decreases with decrease in concentration for both strong and weak electrolytes. (B) The number of ions per unit volume that carry current in a solution increases on dilution. (C) Molar conductivity increases with decrease in concentration. (D) The variation in molar conductivity is different for strong and weak electrolytes. (E) For weak electrolytes, the change in molar conductivity with dilution is due to decrease in degree of dissociation.

  4. Question 4

    Some Basic Concepts of Chemistry. Asked once: 28 Jan 2025 (same type asked 4 times) See all 4 of this type

    110
    Concentrated nitric acid is labelled as 75%75\% by mass. The volume in mL of the solution which contains 30 g of nitric acid is ___\_\_\_ Given : Density of nitric acid solution is 1.25 g/mL1.25\text{ }g/mL

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  5. Question 5

    Equilibrium. Asked once: 22 Jan 2025 (same type asked 4 times) See all 4 of this type

    37
    A vessel at 1000 K contains CO2CO_{2} with a pressure of 0.5 atm . Some of CO2CO_{2} is converted into CO on addition of graphite. If total pressure at equilibrium is 0.8 atm , then KPK_{P} is :

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