Reactions of Ethanol with Sodium

Q.

Write the reaction showing the oxidation of Ethanol.

Q. Identify the balanced chemical reaction of sodium with ethanol.

1. $2\mathrm{Na}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to 2{\mathrm{CH}}_3\mathrm{CHO}+2\mathrm{NaH}$
2. $2\mathrm{Na}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to 2{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Na}+H_{2}O$
3. $2\mathrm{Na}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{ONa}+H_2$
4. $2\mathrm{Na}+2{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to 2{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{ONa}+H_2$

Q.

What happens when (give chemical equation) :
Sodium reacts with ethanol (ethyl alcohol)

Q.

When ethanol reacts with sodium metal, it forms two products. These products are :
(a) sodium ethanoate and oxygen (b) sodium ethanoate and hydrogen
(c) sodium ethoxide and oxygen (d) sodium ethoxide and hydrogen

Q. Name the organic compound prepared by each of the following reaction:
(i) C₂H₅COONa + NaOH $\stackrel{}{\to }$
(ii) CH₃I + 2H⁻ $\stackrel{}{\to }$
(iii) C₂H₅Br + KOH (alcoholic solution) $\stackrel{}{\to }$
(iv) CaC₂ + 2H₂O $\stackrel{}{\to }$

Q.

What is the role of metal or reagents written on arrows in the given chemical reactions?

${\mathrm{CH}}_3\mathrm{COOH}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\stackrel{\mathrm{Conc}{\mathrm{H}}_2{\mathrm{SO}}_4}{\to }{\mathrm{CH}}_3{\mathrm{COOC}}_2{\mathrm{H}}_5+{\mathrm{H}}_2\mathrm{O}$

Q.

Ethanoic acid turns blue litmus solution ............

1. purple

2. pink

3. colourless

4. red

Q.

Which of the following will react with sodium metal?

1. Ethene

2. Ethanol

3. Ethanal

4. Ethane

Q.

State one relevant observation for the following:

When the gaseous product obtained by the dehydration of ethyl alcohol is passed through bromine water.

Q. reacts with sodium metal to give sodium ethoxide and hydrogen gas.

1. Butanol
2. Propanol
3. Ethanol

Q. Ethanol reacts with $Na$ metal to form:

1. $C{H}_{3}ONa+H_2$
2. $C_2{H}_{5}ONa+H_2$
3. $C{H}_{3}COONa+H_2$
4. $C{H}_{3}OOH+H_{2}O$

Q.

Name the products formed and give appropriate chemical equations for the following :
(a) Sodium reacting with ethyl alcohol.
(b) Ethanol oxidised by acidified potassium dichromate.

Q. Give the balanced chemical reaction of sodium with ethanol.

Q. What are the products obtained by heating ethane in:
(a) excess of air
(b) absence of air
(c) air in presence of copper and 120 atm pressure.
(d) air with molybdenum oxide at 100 atm pressure.

Q.

How will you show that nitric acid contains Hydrogen, Nitrogen and Oxygen?

[Hint $\mathrm{Mg}+{\mathrm{HNO}}_3\to \mathrm{show}\mathrm{Hydrogen}$

$4{\mathrm{HNO}}_3\stackrel{∆}{\to }$ $4{\mathrm{NO}}_2+2{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2$, show oxygen

brown ${\mathrm{NO}}_2$fumes show Nitrogen.

Q.

(i) write the equation for the complete combustion of ethane

(ii) Using appropriate catalysts, ethane can be oxidized to an alcohol, an aldehyde and an acid. Name the alcohol, aldehyde and acid formed when ethane is oxidized.

Q.

What happens to the sodium hydroxide solution when carbon dioxide gas is passed through it?

Q.

(a) Name the gas evolved when ethanol reacts with sodium.
(b) What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of conc. $H_{2}S{O}_4$ ?
(c) What will you observe when dilute ethanoic acid and dilute hydrochloric acid are put on universal indicator paper, one by one? What does it show?

Q. Draw the possible isomers of the compound with molecular formula ${\text{C}}_3{\text{H}}_6\text{O}$ and also give their electron dot structures.

[2 Marks]
[Exemplar]
[Electron Dot Structure]

Q.

The reaction 2Na + $2C{H}_{3}C{H}_{2}OH$ $\to$ $2C{H}_{3}C{H}_{2}ON{a}^{+}$ + $H_2$ suggests that ethanol is

1. Acidic in nature

2. Basic in nature

3. Amphoteric

4. Neutral

Q. Identify the balanced chemical reaction of sodium with ethanol.

1. $2\mathrm{Na}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to 2{\mathrm{CH}}_3\mathrm{CHO}+2\mathrm{NaH}$
2. $2\mathrm{Na}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to 2{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Na}+H_{2}O$
3. $2\mathrm{Na}+2{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to 2{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{ONa}+H_2$
4. $2\mathrm{Na}+{\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}\to {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{ONa}+H_2$

Q.

Describe the action of concentrated ${\mathrm{HNO}}_3$ on:
carbon

Q.

Write the chemical equations for the reaction of Ethanoic acid (Acetic acid) with Ethanol in the presence of conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$.

Q.

1. True
2. False

Q.

The reaction 2Na + $2C{H}_{3}C{H}_{2}OH$ $\to$ $2C{H}_{3}C{H}_{2}ON{a}^{+}$ + $H_2$ suggests that ethanol is

1. Acidic in nature

2. Basic in nature

3. Amphoteric

4. Neutral

Q.

The reaction 2Na + $2C{H}_{3}C{H}_{2}OH$ $\to$ $2C{H}_{3}C{H}_{2}ON{a}^{+}$ + $H_2$ suggests that ethanol is

1. Acidic in nature

2. Basic in nature

3. Amphoteric

4. Neutral

Q.

Aditya remembered that Sodium shouldn’t be stored in water and so he used ethanol to store sodium. He observed that sodium disappeared to give a yellow powder. What is this yellow powder?

1. Baking powder

2. Sodium carbonate

3. Sodium hydroxide

4. Sodium ethoxide

Q. Consider the following reactions:

(i) $C{H}_{3}COOH+X\to C{H}_{3}COO{C}_2{H}_5+H_{2}O$

(ii) $2X+2Na\to 2Y+H_{2}O$
$‘X^{\prime }$ and $‘Y^{\prime }$ respectively are

1. Ethanol and sodium ethanoate
2. Ethanol and ethanoic acid
3. Methanol and sodium methoxide
4. Ethanol and sodium ethoxide

Q. Question 17
Ethanol reacts with sodium and forms two products. These are
(a) sodium ethanoate and hydrogen
(b) sodium ethanoate and oxygen
(c) sodium ethoxide and hydrogen
(d) sodium ethoxide and oxygen

Q. Aditya stored sodium in ethanol to prevent it from moisture. He observed a yellow powdery substance. This is due to formation of .

1. baking powder
2. sodium carbonate
3. sodium ethoxide
4. sodium hydroxide