Question
Compare the structures of $\text{H}_2\text{O}$ and $\text{H}_2\text{O}_2$.
✓
Answer
In water, O is $\text{sp}^3$ hybridized. Due to stronger lone pair-lone pair repulsions than bond pair-bond pair repulsions, the HOH bond angle decreases from 109.5° to 104.5°. Thus water molecule has a bent structure.
$\text{H}_2\text{O}_2$ has a non-planar structure. The O—H bonds are in different planes. Thus, the structure of $\text{H}_2\text{O}_2$ is like an open book.
$\text{H}_2\text{O}_2$ has a non-planar structure. The O—H bonds are in different planes. Thus, the structure of $\text{H}_2\text{O}_2$ is like an open book.
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→Match Column I with Column II.
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Column I
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Column II
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(i)
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Dumas method.
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(a)
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$\mathrm{AgNO}_3$ |
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(ii)
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Kjeldahl’s method.
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(b)
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Silica gel.
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(iii)
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Carius method.
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(c)
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Nitrogen gas.
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(iv)
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Chromatography
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(d)
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Free radicals.
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(v)
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Homolysis
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(e)
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Ammonium sulphate.
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