An organic compound A on heating with concentrated H2SO4 forms a compound B which on addition of one mole of hydrogen in presence of Ni forms a compound C. One mole of compound C on combustion forms two moles of CO2 and 3 moles of H2O. Identify the compounds A, B and C and write the chemical equations of the reactions involved.
Compound A is Ethanol (CH3CH2OH)
$CH_3CH_2OH (in \ the \ presence \ of \ conc. H_2SO_4) → CH_2-CH_2+ H_2O$
Compound B is Ethene (CH2= CH2)
$CH_2=CH_2 (in \ the \ presence \ of \ Ni) →C_2H_6$
Compound C is CH3—CH3
$2C_2H_6+7O_2 \rightarrow 4CO_2 + 6H_2O$
Related Articles
- An element A reacts with water to form a compound B which is used in whitewashing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.
- 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.
- 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?
- 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.
- Identify the compound X on the basis of the reactions given below. Also, write the name and chemical formulae of A, B and C."
- 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.
- Consider the following organic compounds:CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO Out of these compounds: (a) Which compound is most likely to be sweet-smelling? (b) Which compound on treatment with conc. H2SO4 at 170°C forms an alkene? (c) Which compound on repeated chlorination forms chloroform? (d) Which compound is added to alcohol to denature it? (e) Which compound is a constituent of vinegar? (f) Which compound is used to sterilise wounds and syringes?
- An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
- Which of the following would weigh the highest?(a) 0.2 mole of sucrose (C12H22O11)(b) 2 moles of CO2(c) 2 moles of CaCO3(d) 10 moles of H2O
- (a) Friedrich Wohler converted an inorganic compound into an organic compound in the laboratory.(i) Give the name and formula of inorganic compound. (ii) Write the name and formula of organic compound formed. (b) Give the molecular formula of butane and mention the names of its two isomers. Name one fuel which contains both these isomers.
- A compound ‘A’ is used in the manufacture of cement. When dissolved in water, it evolves a large amount of heat and forms compound ‘B’.(i) Identify A and B.(ii) Write chemical equation for the reaction of A with water.(iii) List two types of reaction in which this reaction may be classified.
- (a) Name one ionic compound containing chlorine and one covalent compound containing chlorine.(b) How will you find out which of the water soluble compound A or B is ionic?
- 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?
- Two organic compounds A and B have the same molecular formula C6H12. Write the names and structural formulae:(a) if A is a cyclic compound(b) if B is an open chain compound(c) Which compound contains single bonds as well as a double bond?(d) Which compound contains only single bond?
- An element X with atomic number 12 forms a compound with element Y with atomic number 17. The formula of the compound formed is (A) XY (B) XY2 (C) X2Y (D) X2Y3
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