Chemistry

Stability order of oxides (X₂O) is,

l₂O > Cl₂O > Br₂O

Bonds of halogen & oxygen are covalent due to less EN difference.

Stability of (I - O) bond is higher due to less polarity and that of (Cl-O) bond is higher due to multiple bonding.

(a) Cell constant = $\left(\frac{\mathcal{l}}{A}\right)=m/m^2=m^{-1}$  

(b) molar conductivity $\left({\lambda }_m\right)=\frac{\kappa *1000}{molarity}$

= Scm² mol^-1

(c) Conductivity $\left(\kappa \right)=\frac{1}{\rho }=\frac{\mathcal{l}}{RA}$

$={\Omega }^{-1}{m}^{-1}$                                

(d) degree of dissociation = $\frac{numberofmoledissociated}{Totalmole}$ , it is dimensionless 

Ethylene glycol (HO – CH₂ – CH₂ – OH) and terephthalic acid

Rate constant depends on temperature as

$K=A{e}^{-Ea/RT}$              

Here; as T increases rate constant increases exponentially.

Kindly consider the following figure

In reaction ;

  $5F{e}^{2+}+Mn{O}_4^{-}+8H^{+}\to M{n}^{2+}+4H_{2}O+5F{e}^{3+}$              

Colour of Fe²⁺ is green and that of Fe³⁺ is yellow.

$ln{\left[Co{\left(CN\right)}_6\right]}^{4-},$ Co has +2 oxidation state

Hence, electronic configuration of CO2+ is $\left[Ar\right]3d^{7}4s^0$ ${}^{}{}^{}$ . In complex   ${\left[Co{\left(CN\right)}_6\right]}^{4-},$ ${{}_{}}^{}$given ligand CN is strong hence, after pairing in d-subshell, total number of unpaired electron =

$\therefore$ spin magnetic moment =   $\sqrt[]{1\left(1+2\right)}=\sqrt[]{3}=1.73BM$ $\text{exception 25:}\text{exception 25:}$

$=1.73BM\approx 2.0BM$

Kindly conside the following Image

2700 kJ energy released from 180 gm (1 mole) of glucose

$\therefore$ 1 kJ energy released from $\frac{180}{2700}$ gm of glucose

$\therefore$ 10000 kJ energy released from   $\left(\frac{180*10000}{2700}\right)$ gm of glucose

Amount of glucose = $\frac{18000}{27}=666.66\approx 667gm$

$I_3^{-}$ anion has three lone pair