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Day 354: JEE Mains Chemistry

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

  1. Question 1

    Structure of Atom. Asked once: 2021 Paper 9 (same type asked 6 times) See all 6 of this type

    44
    A certain orbital has no angular nodes and two radial nodes. The orbital is :

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  2. Question 2

    Some Basic Concepts of Chemistry. Asked once: 31 Jan 2023 (same type asked 6 times) See all 6 of this type

    55
    Zinc reacts with hydrochloric acid to give hydrogen and zinc chloride. The volume of hydrogen gas produced at STP from the reaction of 11.5 g11.5\text{ }g of zinc with excess HClHCl is LL (Nearest integer)
     (Given : Molar mass of Zn is 65.4 g mol−1 and Molar volume of H2 at STP=22.7 L )\text{~(Given : Molar mass of~}Zn\text{~is~}65.4\text{ }g{\text{ }mol}^{- 1}\text{~and Molar volume of~}H_{2}\text{~at~}STP = 22.7\text{ }L\text{~)}

  3. Question 3

    The p-Block Elements. Asked once: 14 Jun 2022 (same type asked 6 times) See all 6 of this type

    130
    PCl5PCl_{5} is well known. but NCl5NCl_{5} is not. Because.

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  4. Question 4

    Hydrocarbons. Asked once: 29 Jan 2023 (same type asked 6 times) See all 6 of this type

    55
    17mg17mg of a hydrocarbon (M.F. C10H16C_{10}H_{16} ) takes up 8.40 mL8.40\text{ }mL of the H2H_{2} gas measured at 0∘C0^{\circ}C and 760 mm760\text{ }mm of HgHg. Ozonolysis of the same hydrocarbon yields the products shown (propanone, methanal and 2-oxopentanedial). The number of double bond/s present in the hydrocarbon is

  5. Question 5

    Chemical Bonding and Molecular Structure. Asked once: 2021 Paper 19 (same type asked 6 times) See all 6 of this type

    35
    The bond order and magnetic behaviour of O2−O_{2}^{-}ion are, respectively:

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