11. ALCOHOLS, PHENOLS AND ETHERS
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ALCOHOLS, PHENOLS AND ETHER

15576 In chromic acid oxidation of alcohol, the chromium is

1 Reduce from \(C{r^{+ 3}}\) to \(C{r^{ +6}}\)
2 Oxidise from \(C{r^{+6}}\) to \(C{r^{+3}}\)
3 Reduce from \(C{r^{ +6}}\) to \(C{r^{ +3}}\)
4 Oxidise from \(C{r^{+3}}\) to \(C{r^{ + 6}}\)
ALCOHOLS, PHENOLS AND ETHER

15577 \(Ph-O-CH_2-Ph\)  \(\xrightarrow{{{{HI/}}{\Delta }}}\)  product

1 \(Ph-I + Ph-CH_2-OH\)
2 \(Ph-OH + Ph-CH2-OH\)
3 \(Ph-I + Ph -OH\)
4 \(Ph-OH + Ph-CH_2-I \)
ALCOHOLS, PHENOLS AND ETHER

15578 Which of the following gives \(2^o-\) alcohol as a major product with \(CH_3MgBr\) followed by \(H_2O\)

1 \(C{H_3}C{H_2} - OH\)
2 817-b488
3 $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - C{H_3}} 
\end{array}$
4 817-d488
ALCOHOLS, PHENOLS AND ETHER

15579 Which compound does not react with \(NaHCO_3\)

1 Squaric acid
2 Salicylic acid
3 Carbolic acid (phenol)
4 Acetic acid
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ALCOHOLS, PHENOLS AND ETHER

15576 In chromic acid oxidation of alcohol, the chromium is

1 Reduce from \(C{r^{+ 3}}\) to \(C{r^{ +6}}\)
2 Oxidise from \(C{r^{+6}}\) to \(C{r^{+3}}\)
3 Reduce from \(C{r^{ +6}}\) to \(C{r^{ +3}}\)
4 Oxidise from \(C{r^{+3}}\) to \(C{r^{ + 6}}\)
ALCOHOLS, PHENOLS AND ETHER

15577 \(Ph-O-CH_2-Ph\)  \(\xrightarrow{{{{HI/}}{\Delta }}}\)  product

1 \(Ph-I + Ph-CH_2-OH\)
2 \(Ph-OH + Ph-CH2-OH\)
3 \(Ph-I + Ph -OH\)
4 \(Ph-OH + Ph-CH_2-I \)
ALCOHOLS, PHENOLS AND ETHER

15578 Which of the following gives \(2^o-\) alcohol as a major product with \(CH_3MgBr\) followed by \(H_2O\)

1 \(C{H_3}C{H_2} - OH\)
2 817-b488
3 $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - C{H_3}} 
\end{array}$
4 817-d488
ALCOHOLS, PHENOLS AND ETHER

15579 Which compound does not react with \(NaHCO_3\)

1 Squaric acid
2 Salicylic acid
3 Carbolic acid (phenol)
4 Acetic acid
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ALCOHOLS, PHENOLS AND ETHER

15576 In chromic acid oxidation of alcohol, the chromium is

1 Reduce from \(C{r^{+ 3}}\) to \(C{r^{ +6}}\)
2 Oxidise from \(C{r^{+6}}\) to \(C{r^{+3}}\)
3 Reduce from \(C{r^{ +6}}\) to \(C{r^{ +3}}\)
4 Oxidise from \(C{r^{+3}}\) to \(C{r^{ + 6}}\)
ALCOHOLS, PHENOLS AND ETHER

15577 \(Ph-O-CH_2-Ph\)  \(\xrightarrow{{{{HI/}}{\Delta }}}\)  product

1 \(Ph-I + Ph-CH_2-OH\)
2 \(Ph-OH + Ph-CH2-OH\)
3 \(Ph-I + Ph -OH\)
4 \(Ph-OH + Ph-CH_2-I \)
ALCOHOLS, PHENOLS AND ETHER

15578 Which of the following gives \(2^o-\) alcohol as a major product with \(CH_3MgBr\) followed by \(H_2O\)

1 \(C{H_3}C{H_2} - OH\)
2 817-b488
3 $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - C{H_3}} 
\end{array}$
4 817-d488
ALCOHOLS, PHENOLS AND ETHER

15579 Which compound does not react with \(NaHCO_3\)

1 Squaric acid
2 Salicylic acid
3 Carbolic acid (phenol)
4 Acetic acid
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ALCOHOLS, PHENOLS AND ETHER

15576 In chromic acid oxidation of alcohol, the chromium is

1 Reduce from \(C{r^{+ 3}}\) to \(C{r^{ +6}}\)
2 Oxidise from \(C{r^{+6}}\) to \(C{r^{+3}}\)
3 Reduce from \(C{r^{ +6}}\) to \(C{r^{ +3}}\)
4 Oxidise from \(C{r^{+3}}\) to \(C{r^{ + 6}}\)
ALCOHOLS, PHENOLS AND ETHER

15577 \(Ph-O-CH_2-Ph\)  \(\xrightarrow{{{{HI/}}{\Delta }}}\)  product

1 \(Ph-I + Ph-CH_2-OH\)
2 \(Ph-OH + Ph-CH2-OH\)
3 \(Ph-I + Ph -OH\)
4 \(Ph-OH + Ph-CH_2-I \)
ALCOHOLS, PHENOLS AND ETHER

15578 Which of the following gives \(2^o-\) alcohol as a major product with \(CH_3MgBr\) followed by \(H_2O\)

1 \(C{H_3}C{H_2} - OH\)
2 817-b488
3 $\begin{array}{*{20}{c}}
  O \\ 
  {||} \\ 
  {C{H_3} - C - C{H_3}} 
\end{array}$
4 817-d488
ALCOHOLS, PHENOLS AND ETHER

15579 Which compound does not react with \(NaHCO_3\)

1 Squaric acid
2 Salicylic acid
3 Carbolic acid (phenol)
4 Acetic acid
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