MCQ
Oxidation state of $Fe$ in $F{e_3}{O_4}$ is
- A$\frac{3}{2}$
- B$\frac{4}{5}$
- C$\frac{5}{4}$
- ✓$\frac{8}{3}$
$3x + ( - 8) = 0$; $3x - 8 = 0$
$3x = 8$; $x = \frac{8}{3}$.
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$C{H_2} = CH - C \equiv C - C{H_2} - CN$
Name $IUPAC$ Official Name
$(a)$ Unnilunium $(i)$ Mendelevium
$(b)$ Unniltrium $(ii)$ Lawrencium
$(c)$ Unnilhexlum $(iii)$ Seaborglum
$(d)$ Unununnium $(iv)$ Darmstadtium
| List $I$ | List $II$ |
| $P$. $\quad \underset{X}{\left( C _2 H _5\right)_3 N }+\underset{ Y }{ CH _3 COOH }$ | $1.$ Conductivity decreases and then increases |
| $Q.$ $\quad \underset{X}{ KI (0.1 M )}+\underset{ Y }{ AgNO _3(0.01 M )}$ | $2.$ Conductivity decreases and then does not change much |
| $R.$ $\quad \underset{X}{ CH _3 COOH }+\underset{ K }{ KOH }$ | $3.$ Conductivity increases and then does not change much |
| $S$. $\quad \underset{X}{ NaOH }+\underset{Y}{ HI }$ | $4.$ Conductivity does not change much and then increases |
Codes: $ \quad P \quad Q \quad R \quad S $