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Odour of formaldehyde Is:
Metaformaldehyde is a result of?
Methyl ketones can be characterized by performing:
NUMS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:
Ketones undergo reaction with which compound in the presence of acid to form oximes
Hybridization of carbon in -CHO group is:
NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:
IUPAC name of propionaldehyde is:
In the addition of sodium bisulfite to carbonyl system, which of the following is a nucleophile?
PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:
Paraldehyde is formed by:
The flavour of amyl butyrate is:
PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:
H —CHO is:
Ketone can be prepared by the oxidation of:
In which of the following reagent Cupric citrate complex is formed?
PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:
Treatment of propionaldehyde with Dil. the NaOH solution gives:
NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:
Consider the following reaction:
R―CHO + 2[Ag(NH3)2]OH → R―COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests.
PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Elimination Tool:
The general formula for an aldehyde is:
NTS 2010
Chemistry
Aldehydes and Ketones
Elimination Tool:
Butanone on oxidation with K2Cr2O7 / H2SO4 forms:
NUMS 2020
Chemistry
Aldehydes and Ketones
Elimination Tool:
What should be added to methane to produce HCN?
A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?
NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:
Phenylmethyl ketone can be converted into ethyl benzene in one step by using:
NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:
Simplest aromatic aldehyde has number of hydrogen atoms.
Identify the common name of the following compound:
CH₃CH₂COCH₂OH
PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Fundamental Principles of Organic Chemistry
Elimination Tool:
Which of the following will not undergo aldol condensation?
PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:
Ketones and aldehydes are reduced in the presence of catalyst:
Methyl Magnesium Bromide reacts with formaldehyde. The product will be:
What one is the correct geometry of acetal?
PreMedPK MDCAT Mock 3
Aldehydes and Ketones
Elimination Tool:
Which of the following represent the formula of Ketone?
Which of the following reactions is NOT shown by ketones?
NTS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:
What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2
NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:
Which of the following does not give iodoform test?
NUMS 2014
Chemistry
Aldehydes and Ketones
Elimination Tool:
– ROR is the nucleophile of
NTS 2011
Chemistry
Aldehydes and Ketones
Elimination Tool:
Why is water added after the reduction process of aldehyde and ketone with LiAlH4?
NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:
Carbonyl group undergoes:
NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:
In Cannizzaro’s reaction, Benzyl alcohol is obtained from?
PreMedPK MDCAT Mock 4
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Elimination Tool:
IUPAC Name of formaldehyde is
Which class of the compounds is represented by the type formula ROR?
NUMS 2017
Chemistry
Aldehydes and Ketones
Elimination Tool:
Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?
PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Elimination Tool:
Cyanohydrins can be synthesized from ketones through:
PreMedPK MDCAT Mock 4
Chemistry
Aldehydes and Ketones
Elimination Tool:
Meta-formaldehyde molecule has Oxygen MOMS:
In which of the following reaction alkyl ketones are converted Into carboxylic acid with one carbon atom less than the parent compound?
Identification tests for functional groups of organic compounds are associated with specific observations. Tollen’s reagent is an ammoniacal silver nitrate solution, which is used for the identification of a functional group X with an observation O. Identify X and O.
PreMedPK MDCAT Mock 2
Chemistry
Aldehydes and Ketones
Elimination Tool:
A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?
PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:
Oxidation of alcohol converts it into?
Which of the following reagent is used to separate and purify carbonyl and non carbonyl compounds?
PMC 2020
Chemistry
Aldehydes and Ketones
Elimination Tool:
Which of the following reagent is used to separate and purify carbonyl and non carbonyl compounds?
PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:
Ketone reacts with Grignard reagent to form ______ in acidic media?
NTS 2015 SMBBMC
Chemistry
Aldehydes and Ketones
Elimination Tool:
Tincture of Iodine is:
NUMS 2015
Chemistry
Aldehydes and Ketones
Elimination Tool:
Phenylmethyl ketone can be converted into ethyl benzene in one step by using:
PreMedPK MDCAT Mock 2
Chemistry
Aldehydes and Ketones
Elimination Tool:
During oxidation of unsymmetrical ketones which atom is oxidized?
PreMedPK MDCAT Mock 5
Aldehydes and Ketones
PMC Practice 28
Elimination Tool:
Which of the following can be oxidized to an aldehyde?
NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:
Which of the following will not undergo aldol condensation?
NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:
Formaldehyde is Industrially Prepared from:
A student mixed ethyl alcohol with a small amount of sodium dichromate and added it to the hot solution of dilute sulphuric acid. A vigorous reaction took place. He distilled the product formed immediately. What was the product?
PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:
Aldehyde is prepared industrially by air oxidation of ethylene using catalyst
Cyanohydrins can be synthesized from ketones through:
NUMS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:
What is the color of the precipitate when Brady’s reagent is used to test a benzaldehyde?
NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:
In Cannizzaro’s reaction out of two moles, one makes salt of an acid the other makes
Which one of the following is used in making lozenges?
Tollen’s test is used for the detection of:
Q.2 Prokaryotic and eukaryotic cells generally have which of the following features in common?
Which of the following Compound is not reduced by NaBH4 ?
PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Elimination Tool: