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Valence shell electronic configuration of Eu in +2 O.S is,

  $E{u}^{2+}=6s^{0}4f^7$  

It has half filled f-sub shell and stable.

Pentavalent oxides of group – 15 elements, E₂O₅ is more acidic than trivalent oxides, E₂O₃ of the same element.

 Acidic strength of trivalent oxides decreases down the group as metallic strength increases.

V =  $\frac{nRT}{P}=\frac{0.90\times 0.0821\times 300}{18\times 32}\times 760=29.21\cong 29$

N₂ gas is obtained by thermal decomposition of Ba (N₃)₂ as,

$Ba{\left(N_3\right)}_2\underset{}{\overset{\Delta }{\to }}Ba+3N_2\uparrow$

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$BaC{l}_2+S{O}_3^{2-}\stackrel{}{\to }\underset{White}{BaS{O}_3}\downarrow \stackrel{dil.HCl}{\to }\underset{\begin{array}{l}burningsulphur\\ likesmell\end{array}}{S{O}_2\uparrow }$

$CuO+H_2\to Cu+H_{2}O$

Antiseptic Dettol is mixture of chloroxylenol and terpineol

Below 1350° C, Mg can reduce Al₂O₃ and above 1350°C, Al can reduce MgO (from Ellingham diagram).

Melting and boiling point of Mg are lower than that of Al.

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General valence shell electronic configuration of group 16 elements is ns²np⁴.

 For 3^rd period element which is above element “E” is 3s²3p⁴

Primary structure of protein in unaffected by physical or chemical changes.

Potential difference between fixed layer and mobile layer of lyophobic colloid is called zeta potential  or electro kinetic potential.

This potential difference is related to charge on the surface of colloidal particles.

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1. Density of solid decreases in Schottky defect and vacancy defect.
2. Density of solid increases in interstitial defect.
3. Density of solid remain unchanged in Frenkel defect.

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No, students are not allowed to take CUET PG question paper or any other exam related material outside examination hall after  Computer Based Test (CBT) is over.

C = 10^-6 f

  f = 0.5 × 10³ = 500

$z=\sqrt[]{x_R^2+{\left(x_L-x_C\right)}^2}$  

for minimum impedance :

x_L = x_C

$\Rightarrow {\omega }^2=\frac{1}{LC}$  

$\Rightarrow L=\frac{1}{{\pi }^2}=\frac{1}{10}\times 1000=100mH$

Aniline show acid-base reaction with AlCl₃

aniline is a Lewis base while AlCl₃ acts as lewis acid.