A neutral organic compound X of molecular formula C2H6O on oxidation with acidified potassium dichromate gives an acidic compound Y. Compound X reacts with Y on warming in the presence of conc. H2SO4 to give a sweet smelling substance Z. What are X, Y, and Z?
Compound X is ethanol (CH3CH2OH) as it has the molecular formula C2H6O.
Compound Y is ethanoic acid (CH3COOH) as it is formed on the oxidation of ethanol with acidified potassium dichromate.
Z is ethyl ethanoate (CH3COOC2H5) is the ester that is formed when ethanol and ethanoic acid reacts in presence of conc. sulphuric acid.
Ethanol reacts with ethanoic acid to form ethyl ethanoate ester. The chemical equation is given below:
$CH_3COOH + CH_3CH_2OH \xrightarrow {conc. H_2SO_4} CH_3COOC_2H_5 + H_2O$
Related Articles
- A four carbons atoms containing neutral organic compound X reacts with sodium metal to evolve a gas which burns with 'pop' sound. Another four carbon atoms containing carbon compound reacts with sodium hydrogen carbonate to evolve a gas which turns lime water milky. When compounds X and Y are heated together in the presence of a little of concentrated sulphuric acid, then a new compound Z is formed.(a) What is compound X ? Also write its formula. (b) What is compound Y ? Also write its formula. (c) What is compound Z ? Also write its formula. (d) What type of smell is given by compound Z? (e) What is the general name of compounds like Z? (f) What is the general name of the reaction which takes place between X and Y to form Z?
- An organic compound A (molecular formula C2H4O2) reacts with Na metal to form a compound B and evolves a gas which burns with a pop sound. Compound A on treatment with an alcohol C in the presence of a little of concentrated sulphuric acid forms a sweet-smelling compound D (molecular formula C3H6O2). Compound D on treatment with NaOH solution gives back B and C. Identify A, B, C and D.
- Subtract $3 x y+5 y z-7 z x$ from $5 x y-2 y z-2 z x+10 x y z$.
- In \( \Delta X Y Z, X Y=X Z \). A straight line cuts \( X Z \) at \( P, Y Z \) at \( Q \) and \( X Y \) produced at \( R \). If \( Y Q=Y R \) and \( Q P=Q Z \), find the angles of \( \Delta X Y Z \).
- When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through water, then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.(a) What are X, Y and Z?(b) Write equations for the reactions which takes place:(i) when limestone reacts with dilute HCl(ii) when gas X reacts with limewater to form white precipitate Y.(iii) when excess gas X dissolves white precipitate Y to form a soluble compound Z.
- A compound 'X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound 'Y'. 'X ' also reacts with sodium metal to evolve a colorless gas 'Z'. Identify 'X ', 'Y' and 'Z'. Write the equation of the chemical reaction of formation of 'Y', and also write the role of sulphuric acid in the reaction.
- Subtract x²-y²+z² from x²-y²- z²
- Of the three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X, Y and Z and also arrange them in order of increasing reactivity.
- Verify that \( x^{3}+y^{3}+z^{3}-3 x y z=\frac{1}{2}(x+y+z)\left[(x-y)^{2}+(y-z)^{2}+(z-x)^{2}\right] \)
- A neutral organic compound is warmed with some ethanoic acid and a little of conc. H2SO4. Vapours having sweet smell (fruity smell) are evolved. What type of functional group is present in this organic compound?
- If \( x+y+z=0 \), show that \( x^{3}+y^{3}+z^{3}=3 x y z \).
- A compound C (molecular formula, C2H4O2 ) reacts with Na – metal to form a compound R and evolves a gas which burns with a pop sound. Compound C on treatment with an alcohol A in presence of an acid forms a sweet-smelling compound S (molecular formula, C3H6O2 ). On addition of NaOH to C, it also gives R and water. S on treatment with NaOH solution gives back R and A. Identify C, R, A, S and write down the reactions involved.
- A metal carbonate X on reacting with acid gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at the anode during electrolysis of brine is passed on dry Y, and it gives a compound Z, used for disinfecting drinking water. Identity X, Y, G and Z.
- Verify the property \( x \times(y+z)=(x \times y)+(x \times z) \) for the given values of \( x,\ y \) and \( z \).\( x=\frac{-5}{2}, y=\frac{1}{2} \) and \( z=-\frac{10}{7} \)>
- If \( 3^{x}=5^{y}=(75)^{z} \), show that \( z=\frac{x y}{2 x+y} \).
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies