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Ncert Solutions Chemistry Class 12th

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7 months ago

Ncert Solutions Chemistry Class 12th Class 12th

In the given reaction 3-Bromo-2, 2-dimethyl butane $\overset{C_{2} H_{5} O H}{\to} \underset{(M a j o r P r o d u c t)}{' A'}$ Product A is:

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alok kumar singh

Contributor-Level 10

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7 months ago

Ncert Solutions Chemistry Class 12th Organic Chemistry - Some Basic Principles and Tech

Which one of the following pairs of isomers is an example of metamerism?

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Vishal Baghel

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In metamers, distribution of alkyl groups are changed with respect to polyvalent functional groups.

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Ncert Solutions Chemistry Class 12th Class 12th

Which one of the following species doesn't have a magnetic moment of 1.73BM. (spin only value)?

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Vishal Baghel

Contributor-Level 10

ln $C u l, C u^{+} h a s 3 d^{10} 4 s^{0}, [n = 0 a n d μ = 0 B M]$

ln $[C u {(N H_{3})}_{4}] C l_{2}, C u^{+ +} h a s 3 d^{9} 4 s^{0} [n = 1 a n d μ = 1.73 B M]$

$l n O_{2}^{-} & {O_{2}}^{+}$ only one electron is unpaired in anti bonding MO,

Hence [n = 1 and $μ$ = 1.73 BM]

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Ncert Solutions Chemistry Class 12th Class 12th

The conditions given below are in the context of observing Tyndall effect in colloidal solutions:

(A) The diameter of the colloidal particles is comparable to the wavelength of light used.

(B) The diameter of the colloidal particles in much smaller than the wavelength of light used.

(C) The diameter of the colloidal particles is much larger than the wavelength of light used.

(D) The refractive indies of the dispersed phase and the dispersion medium are comparable.

(E) The dispersed phase has a very different refractive index from the dispersion medium.

Choose the most appropriate conditions form the options given belwo.

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alok kumar singh

Contributor-Level 10

Tyndall effect is the optical characteristics of light in which comparable particle size of colloids and bombarded light wavelength can produce this type of effect. For scattering effect of light in Tyndall effect refractive index of dispersed phase and dispersion medium should be greatly different.

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Ncert Solutions Chemistry Class 12th Class 12th

The metal that can be purified economically by fractional distillation method is:

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