JEE Mains XI: Physics, Chem, Math

AI-generated quiz: JEE Mains XI: Physics, Chem, Math

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5
Published
May 13, 2026
Source Type
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chemistry
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This quiz contains 5 questions

  1. 1

    What is the mass percent of carbon in carbon dioxide (CO2)?

    • A0.034%
    • B27.27%
    • C3.4%
    • D28.7%
  2. 2

    The empirical formula and molecular mass of a compound are CH2O and 180 respectively. What will be the molecular formula of the compound?

    • AC9H18O9
    • BCH2O
    • CC6H12O6
    • DC2H4O2
  3. 3

    Which of the following options represents the correct limiting reagents in reactions (i), (ii) and (iii) respectively? (C = 12, O = 16, N = 14, P = 31) (i) C + O2 → CO2 (26g) (20g) (ii) N2 + 3H2 → 2NH3 (60g) (80g) (iii) P4 + 3O2 → P4O6 (100g) (200g)

    • AC, N2, O2
    • BC, N2, P4
    • CO2, H2, P4
    • DO2, N2, P4
  4. 4

    If log10 2 = 0.301, log10 3 = 0.477, then the number of digits in the value of 312 × 28 is equal to

    • A7
    • B8
    • C9
    • D10
  5. 5

    If x = log3 5, y = log17 25, which one of the following is correct:

    • Ax < y
    • Bx = y
    • Cx > y
    • DNone of these