HARD
Earn 100

How many total isomers (constitutional and stereo) are there for dimethylcyclopentane ?

33.33% studentsanswered this correctly

Important Questions on Basic Principles of Organic Chemistry

MEDIUM
Number of constitutional isomers of alkane with formula C6H14 is
MEDIUM

Which of the following alkenes can generate optically active compounds upon hydrogenation?

Question Image

MEDIUM
(+) 2-Methylbutan-1-ol and (-) 2- Methylbutan-1-ol have different values for which property?
MEDIUM
The maximum number of cyclic isomers (positional and optical) of a compound having molecular formula C3H2Cl2 is
EASY
The maximum number of isomeric ethers with the molecular formula C4H10O is
MEDIUM
Among i Cren33+, ii trans-Cren2Cl2+, iii Cis-Cren2Cl2+, iv CoNH34Cl2+ the optically active complexes are
EASY
Which of the following molecules can exhibit optical activity?
MEDIUM
A special name is assigned to compounds having the same molecular formula, but the different structural arrangement of atoms. What is that name? 
MEDIUM

The structure of two organic compounds are given below:

Question Image

(a) Write the molecular formula of these compounds. 
(b) Which type of isomerism do they exhibit? 
(c) Explain the isomerism. 
(d) Write the position isomer of butanol.

EASY
The number of isomers which are ether and having the molecular formula C4H10O , is:
MEDIUM
The compound which is not isomeric with methoxypropane
EASY
Among the following compounds, E/Z isomerism is possible for
EASY
Which one of the following statements is false?
EASY
In the following structure, the double bonds are marked as I,II, III and IV

Question Image

 Geometrical isomerism is not possible at the site(s):
HARD
Total number of isomers, considering both structural and stereoisomers, of cyclic ethers with the molecular formula C4H8O is ________
MEDIUM
The number of chiral carbon centres in penicillin is _________.
HARD
The molecular formula of diphenyl methane Question Image is C13H12.

How many structural isomers are possible when one of the hydrogens is replaced by a chlorine atom?
HARD

What is isomerism? Write the names and structural formulas of the isomers of pentane.

MEDIUM

In the following reaction sequence, identify the relationship between the products Q and S :

Question Image

Question Image