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Day 451: JEE Mains Chemistry

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

  1. Question 1

    Aldehydes, Ketones and Carboxylic Acids. Asked once: 23 Jan 2025

    104
    Given below are two statements: Consider the following reaction Statement (I): In the case of formaldehyde ,K,K is about 2280 , due to small substituents, hydration is faster. Statement (II) : In the case of trichloro acetaldehyde K is about 2000 due to -I effect of -Cl . In the light of the above statements, choose the correct answer form the options given below;

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  2. Question 2

    Amines. Asked once: 29 Jan 2025

    46
    Given below are some nitrogen containing compounds. Each of them is treated with HCl separately. 1.0 g of the most basic compound will consume _____\_\_\_\_\_ mg of HCl . (Given molar mass in gmol−1C:12,H:1,O:16gmol^{- 1}C:12,H:1,O:16, Cl:35.5)Cl:35.5)

  3. Question 3

    Biomolecules. Asked once: 13 Apr 2023

    42
    D-(+)-Glyceraldehyde is treated with (i) HCNHCN, (ii) H2O/H+H_{2}O/H^{+} and (iii) HNO3HNO_{3}. The products formed in this reaction are

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  4. Question 4

    Chemical Bonding and Molecular Structure. Asked once: 31 Jan 2024

    141
    A diatomic molecule has a dipole moment of 1.2 D1.2\text{ D}. If the bond distance is 1 A˚1\,\mathring{A}, then fractional charge on each atom is ______ ×10−11\times 10^{-11} esu. (Given 1 D=10−181\text{ D} = 10^{-18} esu cm)

  5. Question 5

    Chemical Kinetics. Asked once: 23 Jan 2025

    112
    Which of the following graphs most appropriately represents a zero- order reaction?

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