What do you call the compounds having the same molecular formula but different structural arrangements of atoms?

Academic Chemistry NCERT Class 10

Isomers are compounds having the same molecular formula but different structural arrangements of atoms.

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Updated on: 10-Oct-2022

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What is the molecular formula and structural formula of a cyclic hydrocarbon whose one molecule contains 8 hydrogen atoms?
Atoms of elements having the same mass number but different atomic number are called ?
Write the molecular formula of the following compounds:
Write the molecular and structural formula of a cyclic hydrocarbon whose molecule contains 8 atoms of carbon.
(a) Define the term ‘isomer’.(b) Two compounds have same molecular formula C3H6O. Write the name of these compounds and their structural formula.(c) How would you bring the following conversions :(i) Ethanol to ethene(ii) Propanol to propanoic acid
Write the molecular formula of :(i) an alkane ; (ii) an alkene ; (iii) an alkyne, each having 20 carbon atoms.
Three organic compounds A, B and C have the following molecular formulae:A C4H8O2B C4H10OC C4H8O(a) Which compound contains an alcohol group? Write its name and structural formula.(b) Which compound contains a carboxyl group? Write its name and structural formula.(c) Which molecular formula can represent an aldehyde as well as a ketone? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.
Write the structural formula of propene.
Write the structural formula of propyne.
Write the structural formula of butane..
Represent graphically by two separate diagrams in each case$(i)$. Two sound waves having the same amplitude but different frequencies.$(ii)$. Two sound waves having the same frequency but different amplitudes.$(iii)$. Two sound waves having different amplitudes and also different wave lengths.
What name is given to those atoms which contain the same number of protons and electrons but different number of neutrons?
(a) Which functional group do you think can be present in an organic compound having the molecular formula C5H10O2? Write the formula of the organic compound.(b) Give one example each of the compounds having the following functional groups: (i) Aldehyde group (ii) Alcohol group (iii) Carboxylic acid group (iv) Halo group (c) Give one example each of the compounds having the following functional groups: (i) Alkene group (ii) Alkyne group
(a) What do we call those particles which have more or less electrons than the normal atoms?(b) What do we call those particles which have more electrons than the normal atoms? (c) What do we call those particles which have less electrons than the normal atoms?
(a) Give the general name of the class of compounds having the general formula CnH2n-2 Write the name of the first member of this homologous series.(b) The general formula of a homologous series of carbon compounds is CnH2n. Write the molecular formula of the second and fourth members of the series. (c) Write the molecular formulae of the third and fifth members of homologous series of carbon compounds represented by the general formula CnH2n+2.

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