Class 12th

A primary aliphatic amine on reaction with nitrous acid in cold (273K) and there after raising temperature of reaction mixture to room temperature (298K), gives a / an

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$R - N H_{2} \to_{273 K}^{H N O_{2} (a q .)} R - \overset{\oplus}{N_{2}} \to_{298 K}^{H_{2} O / - N_{2} ↑} R - O H$

1° aliphatic amine Diazonium salt Alcohol

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In the given reaction,

The number of p- electron present in the product 'p' in__________.

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It is aldol condensation.

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Identify the major product formed in the following sequence of reactions

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kindly consider the following Image

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The number of chiral alcohol(s) with molecular formula C₄H₁₀O is__________.

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Which one of the following compounds in inactive towards S_N1 reaction?

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kindly consider the following Image

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The correct structure of product 'A' formed in the following reaction,

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Class 12th Chemistry Coordination Compounds

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kindly consider the following Image

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For the reaction given below

CoCl₃ . xNH₃ + AgNO₃(aq) ->

If the equivalents of AgCl precipitate but, then the value of x will be__________.

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CoCl₃.NH₃ + AgNO₃ $\overset{}{\to} A g C l ↓ (2 m o l)$

$[C o {(N H_{3})}_{5} C l] C l_{2} + A g N O_{3} \overset{}{\to} A g C l ↓ (2 m o l)$

x = 5

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The major product (P) in the reaction

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Class 12th Chemistry Coordination Compounds

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kindly consider the following Image

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Spin only magnetic moment of ${[M n B r_{6}]}^{4 -}$ is________ B.M (round off to the closest integer)

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Class 12th Chemistry Chemical Kinetics

Contributor-Level 10

$M n^{2 +} \overset{}{\to} t_{2 g^{111}} {e_{g}}^{11}$

(Number of unpaired electron = 5)

$μ_{S} = \sqrt[]{35} = 5.91 ≅ 6$

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The equation

k = $(6.5 * 1 0^{12} s^{- 1}) e^{- 26000 K / T}$

Is followed for the decomposition of compound A. The activation energy for the reaction is________ kJ mol^-1 [nearest integer] (Given : R = 8.314 JK^-1 mol^-1)

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