Chemistry · JEE

Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle Previous Year Questions for JEE

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Q1ChemistryUnit 2: Atomic Structure

Uncertainity in position of a particle of

25 \mathrm{g}

in space is

10^{-15} \mathrm{m} .

Determine uncertainity in velocity

\left(\mathrm{m} \mathrm{sec}^{-1}\right)

in it. (plank's constant,

\boldsymbol{h}=\mathbf{6 . 6} \times \mathbf{1 0}^{-\mathbf{3 4}} \mathbf{J s}

)

Q2ChemistryUnit 2: Atomic Structure

Assertion According to de Broglie, the wavelengths associtated with electrons and other subatomic particles can be detected experimentally. Reason The wavelength associated with any material particle is directly proportional to its mass.

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PYQs reveal recurring concepts, common traps, and the difficulty level JEE expects. Solving them builds exam temperament and time management.

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Our bank includes exam-style MCQs aligned with JEE Main Chemistry syllabus for Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle, covering the same topics as previous year papers.

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Solve timed sets, review every explanation, note weak subtopics, then revisit with focused practice on Goodmarks.

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