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Alcohols, Phenols and Ethers — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryAlcohols, Phenols and Ethers5 Marks
Question
Explain the oxidation of primary, secondary and tertiary alcohols.
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Answer

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Match the complex ions given in Column I with the colours given in Column II and assign the correct code:
 
Column I (Complex ion)
 
Column II (Colour)
$a.$
$[Co(NH_3)_6]^{3+}$
$1.$
Violet
$b.$
$[Ti(H_2O)_6]^{3+}$
$2.$
Green
$c.$
$[Ni(H_2O)_6]^{2+}$
$3.$
Pale blue
$d.$
$[Ni(H_2O)_4(en)]^{2+} (aq)$
$4.$
Yellowish orange
 
 
$5.$
Blue
Code:
  1. $A (1), B (2), C (4), D (5).$
  2. $A (4), B (3), C (2), D (1).$
  3. $A (3), B (2), C (4), D (1).$
  4. $A (4), B (1), C (2), D (3).$
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An element with molar mass $63g/ mol$ forms a cubic unit cell with edge length of 360.8pm. If its density is $8.92g/ cm^3$. What is the nature of the cubic unit cell?
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Match the items of Column I and Column II on the basis of data given below:
$\text{E}^{\ominus}_{\text{F}_2/\text{F}^-}=2.87\text{V},\text{ E}^{\ominus}_{\text{Li}^+/\text{Li}}=-3.5\text{V},\text {E}^{\ominus}_{\text{Au}^{3+}/\text{Au}}=1.4\text{V},\text{ E}^{\ominus}_{ \text{Br}_2/\text{Br}^-}=1.09\text{V}$
 
Column I
 
Column II
i.
$F_2$
a.
Metal is the strongest reducing agent.
ii.
$Li$
b.
Metal ion which is the weakest oxidising agent.
iii.
$Au^{3+}$​​​​​​​
c.
Non metal which is the best oxidising agent.
iv.
$Br^-$​​​​​​​
d.
Unreactive metal.
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$Au$
e.
Anion that can be oxidised by $Au^{3+}​​​​​​​$​​​​​​​
vi.
$Li^+$
f.
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Metal ion which is an oxidising agent.
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