: When a sodium or potassium salt of a carboxylic acid is electrolysed, hydrocarbon is envolved at anode. $2 \mathrm{RCOOK} \underset{\text { oxidstiou }}{\stackrel{\text { olectolyis }}{\longrightarrow}} \mathrm{R}-\mathrm{R}+2 \mathrm{CO}_2+2 \mathrm{KOH}+\mathrm{H}_2 \uparrow$ This reaction is known as Kolbe's electrolysis.
COMEDK - 2020
Hydrocarbons
230103
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{SOCl}_2 \stackrel{\text { Pyridine }}{\longrightarrow} \mathrm{X}+\mathrm{Y}+\mathrm{Z}$, in this reaction $X, Y$ and $Z$ respectively, are
: When ethyl alcohol reacted with thionyl chloride in the presence of pyridine then the following products are formed- This reaction is called the Darzen reactions.
AP-EAMCET (Medical)
Hydrocarbons
230118
The most important method of preparation of hydrocarbons of lower carbon number is
1 pyrolysis of higher carbon number of hydrocarbons
2 electrolysis of salts of fatty acids
3 Sabatier and Senderen's reaction
4 direct synthesis
Explanation:
: The most important method of preparation of hydrocarbons of lower carbon numbers is by pyrolysis of higher carbon number hydrocarbons. Eg- $\mathrm{C}_6 \mathrm{H}_{14} \stackrel{\text { Pyrolyzis }}{\longrightarrow} \mathrm{C}_2 \mathrm{H}_4+\mathrm{C}_4 \mathrm{H}_{10}$
AIIMS-2009
Hydrocarbons
230107
Aluminium reacts with hot concentrated $\mathrm{H}_2 \mathrm{SO}_4$ to liberate :
1 $\mathrm{SO}_2$
2 $\mathrm{H}_2 \mathrm{~S}$
3 $\mathrm{SO}_3$
4 $\mathrm{S}$ (Vapour)
Explanation:
: Aluminium reacts with not concentrated sulphuric acid to form aluminium sulphate with the evalution of sulphur dioxide gas Sulphuric acid acts as on oxidising agent and get itself reduced to $\mathrm{SO}_2$. Here $\mathrm{H}_2 \mathrm{SO}_4$ acts as an oxidising agent and get itself reduced to $\mathrm{SO}_2$.
: When a sodium or potassium salt of a carboxylic acid is electrolysed, hydrocarbon is envolved at anode. $2 \mathrm{RCOOK} \underset{\text { oxidstiou }}{\stackrel{\text { olectolyis }}{\longrightarrow}} \mathrm{R}-\mathrm{R}+2 \mathrm{CO}_2+2 \mathrm{KOH}+\mathrm{H}_2 \uparrow$ This reaction is known as Kolbe's electrolysis.
COMEDK - 2020
Hydrocarbons
230103
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{SOCl}_2 \stackrel{\text { Pyridine }}{\longrightarrow} \mathrm{X}+\mathrm{Y}+\mathrm{Z}$, in this reaction $X, Y$ and $Z$ respectively, are
: When ethyl alcohol reacted with thionyl chloride in the presence of pyridine then the following products are formed- This reaction is called the Darzen reactions.
AP-EAMCET (Medical)
Hydrocarbons
230118
The most important method of preparation of hydrocarbons of lower carbon number is
1 pyrolysis of higher carbon number of hydrocarbons
2 electrolysis of salts of fatty acids
3 Sabatier and Senderen's reaction
4 direct synthesis
Explanation:
: The most important method of preparation of hydrocarbons of lower carbon numbers is by pyrolysis of higher carbon number hydrocarbons. Eg- $\mathrm{C}_6 \mathrm{H}_{14} \stackrel{\text { Pyrolyzis }}{\longrightarrow} \mathrm{C}_2 \mathrm{H}_4+\mathrm{C}_4 \mathrm{H}_{10}$
AIIMS-2009
Hydrocarbons
230107
Aluminium reacts with hot concentrated $\mathrm{H}_2 \mathrm{SO}_4$ to liberate :
1 $\mathrm{SO}_2$
2 $\mathrm{H}_2 \mathrm{~S}$
3 $\mathrm{SO}_3$
4 $\mathrm{S}$ (Vapour)
Explanation:
: Aluminium reacts with not concentrated sulphuric acid to form aluminium sulphate with the evalution of sulphur dioxide gas Sulphuric acid acts as on oxidising agent and get itself reduced to $\mathrm{SO}_2$. Here $\mathrm{H}_2 \mathrm{SO}_4$ acts as an oxidising agent and get itself reduced to $\mathrm{SO}_2$.
: When a sodium or potassium salt of a carboxylic acid is electrolysed, hydrocarbon is envolved at anode. $2 \mathrm{RCOOK} \underset{\text { oxidstiou }}{\stackrel{\text { olectolyis }}{\longrightarrow}} \mathrm{R}-\mathrm{R}+2 \mathrm{CO}_2+2 \mathrm{KOH}+\mathrm{H}_2 \uparrow$ This reaction is known as Kolbe's electrolysis.
COMEDK - 2020
Hydrocarbons
230103
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{SOCl}_2 \stackrel{\text { Pyridine }}{\longrightarrow} \mathrm{X}+\mathrm{Y}+\mathrm{Z}$, in this reaction $X, Y$ and $Z$ respectively, are
: When ethyl alcohol reacted with thionyl chloride in the presence of pyridine then the following products are formed- This reaction is called the Darzen reactions.
AP-EAMCET (Medical)
Hydrocarbons
230118
The most important method of preparation of hydrocarbons of lower carbon number is
1 pyrolysis of higher carbon number of hydrocarbons
2 electrolysis of salts of fatty acids
3 Sabatier and Senderen's reaction
4 direct synthesis
Explanation:
: The most important method of preparation of hydrocarbons of lower carbon numbers is by pyrolysis of higher carbon number hydrocarbons. Eg- $\mathrm{C}_6 \mathrm{H}_{14} \stackrel{\text { Pyrolyzis }}{\longrightarrow} \mathrm{C}_2 \mathrm{H}_4+\mathrm{C}_4 \mathrm{H}_{10}$
AIIMS-2009
Hydrocarbons
230107
Aluminium reacts with hot concentrated $\mathrm{H}_2 \mathrm{SO}_4$ to liberate :
1 $\mathrm{SO}_2$
2 $\mathrm{H}_2 \mathrm{~S}$
3 $\mathrm{SO}_3$
4 $\mathrm{S}$ (Vapour)
Explanation:
: Aluminium reacts with not concentrated sulphuric acid to form aluminium sulphate with the evalution of sulphur dioxide gas Sulphuric acid acts as on oxidising agent and get itself reduced to $\mathrm{SO}_2$. Here $\mathrm{H}_2 \mathrm{SO}_4$ acts as an oxidising agent and get itself reduced to $\mathrm{SO}_2$.
: When a sodium or potassium salt of a carboxylic acid is electrolysed, hydrocarbon is envolved at anode. $2 \mathrm{RCOOK} \underset{\text { oxidstiou }}{\stackrel{\text { olectolyis }}{\longrightarrow}} \mathrm{R}-\mathrm{R}+2 \mathrm{CO}_2+2 \mathrm{KOH}+\mathrm{H}_2 \uparrow$ This reaction is known as Kolbe's electrolysis.
COMEDK - 2020
Hydrocarbons
230103
$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}+\mathrm{SOCl}_2 \stackrel{\text { Pyridine }}{\longrightarrow} \mathrm{X}+\mathrm{Y}+\mathrm{Z}$, in this reaction $X, Y$ and $Z$ respectively, are
: When ethyl alcohol reacted with thionyl chloride in the presence of pyridine then the following products are formed- This reaction is called the Darzen reactions.
AP-EAMCET (Medical)
Hydrocarbons
230118
The most important method of preparation of hydrocarbons of lower carbon number is
1 pyrolysis of higher carbon number of hydrocarbons
2 electrolysis of salts of fatty acids
3 Sabatier and Senderen's reaction
4 direct synthesis
Explanation:
: The most important method of preparation of hydrocarbons of lower carbon numbers is by pyrolysis of higher carbon number hydrocarbons. Eg- $\mathrm{C}_6 \mathrm{H}_{14} \stackrel{\text { Pyrolyzis }}{\longrightarrow} \mathrm{C}_2 \mathrm{H}_4+\mathrm{C}_4 \mathrm{H}_{10}$
AIIMS-2009
Hydrocarbons
230107
Aluminium reacts with hot concentrated $\mathrm{H}_2 \mathrm{SO}_4$ to liberate :
1 $\mathrm{SO}_2$
2 $\mathrm{H}_2 \mathrm{~S}$
3 $\mathrm{SO}_3$
4 $\mathrm{S}$ (Vapour)
Explanation:
: Aluminium reacts with not concentrated sulphuric acid to form aluminium sulphate with the evalution of sulphur dioxide gas Sulphuric acid acts as on oxidising agent and get itself reduced to $\mathrm{SO}_2$. Here $\mathrm{H}_2 \mathrm{SO}_4$ acts as an oxidising agent and get itself reduced to $\mathrm{SO}_2$.
