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Day 131: JEE Mains Chemistry

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

  1. Question 1

    Equilibrium. Asked once: 6 Apr 2024 (same type asked 5 times) See all 5 of this type

    140
    The ratio KPKC\frac{K_{P}}{K_{C}} for the reaction: CO(g)+12O2( g)⇌CO2( g)CO_{(g)}+\frac{1}{2}O_{2(\text{ }g)}\rightleftharpoons CO_{2(\text{ }g)} is:

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  2. Question 2

    Structure of Atom. Asked once: 5 Apr 2024 (same type asked 5 times) See all 5 of this type

    144
    In an atom, total number of electrons having quantum numbers n=4,∣ml∣=1n = 4,|m_{l}|= 1 and ms=−12m_{s}= -\frac{1}{2} is

  3. Question 3

    Chemical Bonding and Molecular Structure. Asked once: 22 Jan 2025 (same type asked 5 times) See all 5 of this type

    101
    Arrange the following compounds in increasing order of their dipole moment : HBr,H2 S,NF3HBr,H_{2}\text{ }S,NF_{3} and CHCl3CHCl_{3}

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  4. Question 4

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 1 Feb 2024 (same type asked 5 times) See all 5 of this type

    146
    Following Kjeldahl's method, 1 g1\text{ }g of organic compound released ammonia, that neutralised 10 mLmL of 2MH2SO42MH_{2}SO_{4}. The percentage of nitrogen in the compound is _______ %\%.

  5. Question 5

    Chemical Kinetics. Asked once: 4 Apr 2025 (same type asked 5 times) See all 5 of this type

    33
    Rate law for a reaction between AA and BB is given by R=k[ A]n[ B]mR = k\lbrack\text{ }A\rbrack^{n}\lbrack\text{ }B\rbrack^{m}If concentration of A is doubled and concentration of BB is halved from their initial value, the ratio of new rate of reaction to the initial rate of reaction (r2r1)\left( \frac{r_{2}}{r_{1}} \right) is.

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