Hydrogen and Redox Reactions

Para and ortho-hydrogen differ in

Options

(a) atomic number (b) atomic mass (c) spins of proton (d) number of neutron

Correct Answer:

spins of proton

Explanation:

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The boiling point of heavy water is

Options

(a) 100⁰C (b) 101.4⁰C (c) 99⁰C (d) 110⁰C

Correct Answer:

101.4⁰C

Explanation:

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Which of the following statement is correct

Options

(a) Hydrogen will not be liberated at anode (b) Hydrogen has oxidation number of -1 and +1 (c) Hydrogen has same ionization potential as alkali […]

Which of the following is heavy water

Options

(a) H₂O (b) H₂O₁₈ (c) D₂O (d) H₂O₁₆

Correct Answer:

D₂O

Explanation:

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Which of the following statement regarding hydrogen peroxide is false

Options

(a) It is strong oxidizing agent (b) It is decomposed by MnO₂ (c) It behaves as a reducing agent (d) It is […]

Last molecule of H₂O is evolved from H₂O₂ by

Options

(a) electrolysis (b) crystallisation (c) condensation (d) evaporation

Correct Answer:

crystallisation

Explanation:

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Hydrogen cannot be obtained by

Options

(a) Mg + H₂SO₄ (b) Mg + H₂O (c) Zn + dil. H₂SO₄ (d) Zn + dil.HNO₃

Correct Answer:

Zn + dil.HNO₃

Explanation:

No explanation available. Be […]

Pure nascent hydrogen is based obtained by

Options

(a) Na and C₂H₅OH (b) Al and NaOH (c) Zn and dil.H₂SO₄ (d) all of these

Correct Answer:

Zn and dil.H₂SO₄

Explanation:

No explanation available. […]