Objective Questions

What is the purpose of the sodium fusion extract (Lassaigne's extract)?

What is the iodoform test positive for?

What does Schiff's test detect?

In IR spectroscopy, what is the significance of a sharp peak around 3300 cm⁻¹?

What does the Carius method for halogens use as oxidizing agent?

In the sodium bicarbonate test for carboxylic acids, what gas is evolved?

What is the purpose of cupric oxide (CuO) in Liebig's combustion method?

What does the Zeisel test detect?

In UV-Vis spectroscopy, what does n→π* transition refer to?

In UV-Vis spectroscopy, what does π→π* transition refer to?

Which part of an IUPAC name indicates the number of carbons in the longest cont…

What information is provided by the suffix of an organic compound's name?

Which component of the IUPAC name specifies the identity, location, and number …

If an alkane contains 7 carbon atoms in its longest chain, what is its parent n…

What is the IUPAC name for a straight-chain alkane with 10 carbon atoms?

Which of the following is the correct suffix for a molecule belonging to the al…

When two different carbon chains have the same length, how is the parent chain …

In what direction should the parent chain be numbered to locate substituents?

How is a branch formed from an alkane by removing one hydrogen atom named?

Which substituent is abbreviated as 'Et-'?

What is the name of the $C_6H_5-$ substituent group?

If the first substituent is equidistant from both ends, how is the numbering di…

Which prefix is used to indicate the presence of three identical substituents?

How are substituents ordered when writing the final IUPAC name?

Which punctuation is used to separate two numbers in an IUPAC name?

Which of the following prefixes is NOT ignored when alphabetizing substituents?

Between an alcohol and an alkene, which functional group has higher priority fo…

What must the parent chain of an alkene always contain?

What is the term for a compound containing both a double bond and a hydroxyl gr…

When an alcohol group is on a ring, which carbon is always designated as C1?

What is a compound with two hydroxyl groups called?

In alkene stereochemistry, what does 'cis' indicate?

Which letter represents the 'Z' isomer in the E/Z nomenclature system?

How are higher priority groups positioned in an 'E' isomer?

What is the name for a compound containing both a double bond and a triple bond?

How is the numbering direction determined for an enyne?

Which functional group has the general formula RCHO?

What is the suffix for a carboxylic acid?

Which group uses the suffix '-one'?

What is the structure of an ether?

Which substituent is abbreviated as 'Ph-'?

In the name '2-chloro-5-methylheptane', which substituent comes first alphabeti…

What does a 'triol' contain?

What is the parent name for a 12-carbon alkane?

What happens if there is no free rotation about a bond?

Which multiplier prefix means four?

If substituents are at C3 and C5 when numbering from the left, and C3 and C5 wh…

What is an alkyl group?

What is the correct punctuation between a number and a letter in a name?

What is the name for a 2-carbon alkyl group?

Which of these is the correct general formula for an alkane?

What is the suffix for an ester?

What functional group is represented by $-NH_2$?

In the name '3-methylcyclohexanol', why is there no '1' before 'ol'?

How are two triple bonds in one molecule indicated?

Which group has the suffix '-al'?

What is the parent name for a 20-carbon alkane?

How many bonds must every carbon atom have in a structural drawing?

What is the suffix for an amide?

What is the priority order for numbering if an alcohol and alkane are present?

Which prefix means 'opposite' in E/Z nomenclature?

What is the identity of a $CH_3-$ group?

How is a triple bond indicated in a name?

What is the term for two different longest chains of the same length?

Which multiplier prefix is used for two identical groups?

What functional group is represented by $-NO_2$?

What is the common name for 1,2-ethanediol?

Which of the following is not a characteristic of organic compounds?

The element least likely to be found in an organic compound is

One of the major sources of organic compounds is

Catenation is a property of the carbon atom which describes its ability to

In stable organic compounds, carbon will always form

Carbon-carbon double bonds consist of :

Acetylene has a total of :

In propene there are

In propyne there are

1-Buten-3-yne has

Compound in which carbons use only sp3 hybrid orbitals for bond formation is

When the carbon atom is sp2 hybridized in a compound, it is bonded to

Which of the following is a planar molecule?

What is bond angle between the hybrid orbitals in methane?

The H–C–C bond angle in ethane is

The H–C–H bond angle in ethylene is

What is the bond length of a carbon-carbon double bond?

The carbon-carbon bond lengths in rank of increasing bond length is :

Which of the following is the correct order of bond lengths :

What is the hybridization of the carbon atoms numbered 1 and 2 respectively in …

How many atoms are attached to an atom having a sp hybridization?

Which statement is true?

Resonance structures of a molecule have

Which of the following compounds have planar molecules?

Which molecule has a nonzero dipole moment?

Which of the following compounds have lowest dipole moment?

Which molecule has the greatest dipole moment

Which of the following compounds have highest dipole moment?

Homolytic fission of C–C bond leads to the formation of :

Homolytic fission of covalent bond between carbon atoms will produce :

The order of stability of carbonium ions is

The order of stability of carbanions is

Which alkyl free radical is the most stable?