Rank the following substances in order of decreasing heat of combustion (maximum - minimum):

1 > 2 > 4 > 3

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3 > 4 > 2 > 1

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2 > 4 > 1 > 3

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1 > 3 > 2 > 4

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Solution

The correct option is C $2 > 4 > 1 > 3$
$Δ H α \frac{1}{s t a b i l i t y}$
And stability of rings increase with size till 6 membered then decreases
And trans is more stable than is
$∴$ stability order is
$3 > 1 > 4 > 2$
$∴$ Order of heat is
$2 > 4 > 1 > 3$

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Rank the following substances in order of decreasing heat of combustion (maximum - minimum):

The correct option is C 2>4>1>3ΔHα1stabilityAnd stability of rings increase with size till 6 membered then decreases And trans is more stable than is ∴ stability order is 3>1>4>2∴ Order of heat is 2>4>1>3

The correct option is C $2 > 4 > 1 > 3$
$Δ H α \frac{1}{s t a b i l i t y}$
And stability of rings increase with size till 6 membered then decreases
And trans is more stable than is
$∴$ stability order is
$3 > 1 > 4 > 2$
$∴$ Order of heat is
$2 > 4 > 1 > 3$