Chemistry

Due to the absence of acidic hydrogen in But – 2-yne, metallic sodium does not react with this.

Orlon fibres are the polymer of acrylonitrile

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

ln $Cul,C{u}^{+}has3d^{10}4s^0,\left[n=0and\mu =0BM\right]$

ln   $\left[Cu{\left(N{H}_3\right)}_4\right]C{l}_2,C{u}^{++}has3d^{9}4s^0\left[n=1and\mu =1.73BM\right]$

$ln{O}_2^{-}\&{O_2}^{+}$ only one electron is unpaired in anti bonding MO,

Hence [n = 1 and $\mu$ = 1.73 BM]

$K_2\left[Ni{\left(CN\right)}_4\right]$

$N{i}^{2+}\to 3d^{8}4s^0$

dsp² hybridisation

Paring developed due to strong ligand effect.

NiCl₂.6H₂O

Ni²⁺ ->3d⁸4s⁰

Na₂ [NiCl₄]

Ni²⁺ -> 3d⁸4s⁰

[Ni (CO)₄]

Ni->3d⁸4s²

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.

B (OH)₃ is orthoboric acid having acidic nature, while Al (OH)₃ has amphoteric nature that is acidic and as well as basic

Due to volatile nature, Zn – metal can be economically purified by fractional distillation refining process.