The compounds C2H5OC2H5 and CH3OCH2CH2CH3 are
R & R` are different so these are metamers
C7H7Cl shows how many benzenoid aromatic isomers?
How many minimum no. of C-atoms are required for position & geometrical isomerism in alkene?
For positional isomerism in alkene 4C-atom required →
For geometrical isomerism in alkene also 4c–atom required →
How many structural formula are possible when one of the hydrogen is replaced by a chlorine atom in anthracene?
The principle involved in paper chromatography is
The number of cis-trans isomer possible for the following compound
The number of isomers of dibromoderivative of an alkene (molear mass 186 g mol-1) is
Increasing order of stability among the three main conformation (i.e. eclipse, anti, gauche) of ethylene glycol is:
Stability order ⇒ Gauche > Anti > Eclipse
How many primary amines are possible for the formula C4H11N?
In which of the following compounds the carbon marked with asterisk is expected to have greatest positive charge?
How many planes (pos) are presents in Anthracene
(1) Vertical plane (2) Horizontal plane (3) Molecular Plane
Geometrical isomers can be
Geometrical Isomers can be Diastereomers or Enantiomers.
Because geometrical isomers are around restricted rotation which can not be rotate or interconvertable.
Phenol and benzyl alcohol are
Number of chiral centers are:
Number of chiral centers = 2
Which of the follownig compounds is (S)-4-chloro-1-methylcyclohexene ?
(B) & (C) compounds are R-configuration.
Which of the following compounds has two stereogenic centers (asymmetric carbons) ?
Which of the following structures represents a chiral compound ?
All four substituent are different so it is chiral compound.
Examine the compound on the right. How many stereoisomers having this constitution are possible ?
Asymmetric = 23 = 8
Which of the following heptanols are chiral 1-heptanol, 2-heptanol, 3-heptanol, 4-heptanol.
1-Heptanol & 4-Heptanol are not chiral
2-Heptanol & 3-Heptanol are chiral compound.
Which of the following will exhibit geometrical isomerism ?
Relation between given pair is
Following eclipsed form of propane is repeated after rotation of
Stereoisomers differ from each other in what respect ?
Stereoisomer differ from each other in configuration.
The number of isomers of C5H10 is
The compound with the above configuration is called.
(2s, 3s) -2-chloro-3-Hydroxy Pentane
The above compounds differ in
The above compounds are different in structure.
The compound C2H5OC2H5 and CH3OCH2CH2CH3 are
R & R' are different so they are metamers.
Which conformer of cyclohexane is chiral
Twisted Boat form is chiral & optically active.
Minimum C atoms required for a compound to show geometrical isomerism :
Any compound which show g.I. no C atom required.