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?
(a) The compound X is butanol (C4H9OH).
(b) The compound Y is butanoic acid (C3H7COOH).
(c) The compound Z is butyl butanoate (C3H7COOC4H9).
(d) The type of smell produced by the compound Z is a sweet, fruity fragrance.
(e) Ester is the general name given to the compound formed by the reaction of X and Y.
(f) Esterification is the general name of the reaction that takes place between X (butanol) and Y (butanoic acid) to produce Z (butyl butanoate).
Related Articles
- 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?
- 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.
- An organic compound A having the molecular formula C3H8O is a liquid at room temperature. The organic liquid A reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid A heated with concentrated sulphuric acid at 170°C, it forms a compound B which decolourizes bromine water. The compound B adds on one molecule of hydrogen in the presence of Ni as catalyst to forms compound C which gives substitution reactions with chlorine.(a) What is compound A? (b) What is compound B? (c) What type of reaction occurs when A is converted into B? (d) What is compound C? (e) What type of reaction takes place when B is converted into C?
- 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.
- Compound A, when dissolved in water, gives compound B which is used in whitewashing. Compound B reacts with carbon dioxide to form a white precipitate of compound C. Identify compounds A, B and C. Also write the equations involved.
- When a mixture of gas X and Y is compressed to 300 atm pressure and then passed over a catalyst consisting of a mixture of zinc oxide and chromium oxide (heated to a temperature of 300OC), then an organic compound Z having the molecular formula CH4O is formed. X is a highly poisonous gas which is formed in appreciable amounts when a fuel burns in limited supply of air; Y is a gas which can be made by the action of dilute acid on an active metal, and Z is a liquid organic compound which can react with sodium metal to produce hydrogen gas.(a) What are X, Y, and Z.(b) Write a balanced chemical equation of the reaction which takes place when X and Y combine to form Z. Indicate the conditions in which the reaction occurs.
- 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.
- Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses. Write chemical equation and name of the product formed when this compound reacts with(i) sodium metal(ii) hot concentrated sulphuric acid
- A non-metal X which is the largest constituent of air combines with hydrogen when heated in the presence of iron as catalyst to form a gas Y. When gas Y is treated with sulphuric acid, it forms a compound Z which is used as a chemical fertilizer.(a) What are X, Y, and Z? (b) To which group of periodic table does X belong? (c) Name the period of periodic table in which X is placed. (d) Which element is placed just before X in the period? (e) Which element is placed just after X in the period?
- Hydrochloric acid reacts with a metal X to form a gas Y which burns with a ‘pop’ sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y.(a) Name X and Y(b) Write the chemical equation of the reaction of metal X with (i) Hydrochloric acid, and (ii) Sodium hydroxide solution.
- When metal X is treated with dilute acid Y, then a gas Z is evolved which burns readily by making a little explosion.(a) Name any two metals which can behave like metal X.(b) Name any two acids which can behave like acid Y.(c) Name the gas Z.(d) Is gas Z lighter than or heavier than air?(e) Is the reaction between metal X and dilute acid Y exothermic or endothermic?(f) By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate the physical states of all the reactants and products
- An element X from group 2 reacts with element Y from group 16 of the periodic table.(a) What is the formula of the compound formed?(b) What is the nature of bond in the compound formed?
- The white solid compound A decomposes quite rapidly on heating in the presence of a black substance X to form a solid compound B and a gas C. When an aqueous solution of compound B is reacted with silver nitrate solution, then a white precipitate of silver chloride is obtained along with potassium nitrate solution. Gas C does not burn itself but helps burn other things.(a) What is compound A?(b) What is compound B?(c) What is gas C?(d) What do you think is the black substance X? What is its function?(e) What is the general name of substances like X?
- The metal X reacts with dilute hydrochloric acid to form a gas Y. The metal X also reacts with sodium hydroxide solution (on heating) to form the same gas Y. When a lighted matchstick is applied, this gas burns by producing a ‘pop’ sound.(a) Name two metals which could behave like X(b) Name the gas Y
- When a metal X is treated with cold water, it gives a basic salt Y with molecular formula XOH (Molecular mass = 40) and liberates a gas Z which easily catches fire. Identify X, Y and Z and also write the reaction involved.
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