Haloalkanes and Haloarenes

Consider the following reaction and identify the product (P).

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Initially, after protonation followed by loss of water, secondary carbocation is formed, further Hydride shift leads to 3° carbocation.

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An organic compound contains 78% (b wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is : [Atomic wt. of C is 12, H is 1]

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Haloalkanes and Haloarenes Class 11th

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Element % At. Weight (% / At.weight) the simplest ratio
C 78 12 6.5 1
H 22 1 22 ≈ 3

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For a reaction A → B, enthalpy of reaction is −4.2 kJ mol¯¹ and enthalpy of activation is 9.6 kJ mol¯¹. The correct potential energy profile for the reaction is shown in option.

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For a given reaction? H is negative. Hence, potential energy profile is of an exothermic reaction.

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The incorrect statement regarding chirality is:

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A racemic mixture shows zero optical rotation.

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Consider the above reaction where 6.1 g of Benzoic acid is used to get 7.8g of m- bromo benzoic acid. The percentage yield of the product is ________. (Round off to the nearest integer).
[ Given : Atomic masses : C: 12.0u, H:1.0u, O:16.0u, Br:80.0 u]

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Moles of benzoic acid = 6.1 / 121 = 0.05
Theoretical moles of m- bromobenzoic acid = 0.05
Observed moles of m- bromobenzoic acid = 7.8 / 200 = 0.039
% yield = (0.039 / 0.05) * 100 = 78%

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Consider the above reaction, the product 'X' and 'Y' respectively are:

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Please consider the following Image

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Given below are two statements:
Statement I: C?H?OH and AgCN both can generate nucleophile.
Statement II: KCN and AgCN both will generate nitrile nucleophile with all reaction conditions.
Choose the most appropriate option:

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Both C? H? OH and AgCN can generate nucleophile.
KCN generate nitrile as nucleophile while AgCN generate isonitrile as nucleophile in nucleophilic substitution reaction.

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In a binary compound, atoms of element A form a hcp structure and those of element M occupy 2/3 of the tetrahedral voids of the hcp structure. The formula of the binary compound is:

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o Let the number of atoms of element A be N.

o Tetrahedral voids = 2N.

o Atoms of element M = (2/3) * 2N = 4/3 N.

o The ratio M : A is (4/3 N) : N, which simplifies to 4:3.

o So, the formula of the compound is M? A?

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Kindly go through the following questions

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Kindly consider the following figure

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The above reaction requires which of the following reaction conditions?

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