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Day 316: JEE Mains Chemistry

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

  1. Question 1

    Some Basic Concepts of Chemistry. Asked once: 1 Feb 2023 (same type asked 4 times) See all 4 of this type

    54
    Sum of oxidation states of bromine in bromic acid and perbromic acid is

  2. Question 2

    Biomolecules. Asked once: 2021 Paper 8 (same type asked 4 times) See all 4 of this type

    44
    Consider the reactions: C12H22O11C_{12}H_{22}O_{11} (sucrose) +H2O→Enzyme AC6H12O6+ H_{2}O \xrightarrow{\text{Enzyme A}} C_{6}H_{12}O_{6} (glucose) +C6H12O6+ C_{6}H_{12}O_{6} (fructose), and C6H12O6C_{6}H_{12}O_{6} (glucose) →Enzyme B2C2H5OH+2CO2\xrightarrow{\text{Enzyme B}} 2C_{2}H_{5}OH + 2CO_{2}. The enzyme AA and enzyme BB respectively are:

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  3. Question 3

    Biomolecules. Asked once: 2021 Paper 24 (same type asked 4 times) See all 4 of this type

    60
    A peptide synthesized by the reactions of one molecule each of Glycine, Leucine, Aspartic acid and Histidine will have ____ peptide linkages.

  4. Question 4

    Organic Chemistry - Some Basic Principles and Techniques. Asked once: 2021 Paper 16 (same type asked 4 times) See all 4 of this type

    28
    Staggered and eclipsed form of ethane are:

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  5. Question 5

    Some Basic Concepts of Chemistry. Asked once: 14 Jun 2022 (same type asked 4 times) See all 4 of this type

    141
    At 300 K300\text{ }K, a sample of 3.0 g3.0\text{ }g of gas A occupies the same volume as 0.2 g0.2\text{ }g of hydrogen at 200 K200\text{ }K at the same pressure. The molar mass of gas AA is 000‾ g mol−1\underline{\phantom{000}}\ g\ mol^{-1} (nearest integer). Assume ideal behaviour of the gases. (Given: The molar mass of hydrogen (H2)\left( H_{2} \right) gas is 2.0 g mol−12.0\text{ }g\text{ }mol^{-1})