Chemistry

The hybridization of oxygen atom in H₂O₂ is

Options

(a) sp³d (b) sp (c) sp² (d) sp³

Correct Answer:

sp³

Explanation:

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The bond angle in water is

Options

(a) 120⁰ (b) 109.5⁰ (c) 107⁰ (d) 104.5⁰

Correct Answer:

104.5⁰

Explanation:

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The H – O – O bond angle in H₂O₂ is

Options

(a) 107.28⁰ (b) 109.28⁰ (c) 97⁰ (d) 106⁰

Correct Answer:

97⁰

Explanation:

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The normality of 10 volume hydrogen peroxide is

Options

(a) 0.176 (b) 3.52 (c) 1.78 (d) 0.88

Correct Answer:

1.78

Explanation:

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Water softening by Clark’s process uses

Options

(a) calcium bicarbonate (b) sodium bicarbonate (c) potash alum (d) calcium hydroxide

Correct Answer:

calcium hydroxide

Explanation:

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Action of water or dilute mineral acids on metals can give

Options

(a) monohydrogen (b) tritium (c) dihydrogen (d) trihydrogen

Correct Answer:

dihydrogen

Explanation:

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The reaction in which hydrogen peroxide acts as a reducing agent is

Options

(a) PbS + 4H₂O₂ → PbSO₄ + 4H₂O (b) 2KI + H₂O₂ → 2KOH + I₂ (c) 2FeSO₄ + H₂SO₄ […]