Chemistry Ch 12 Class 12 Aldehydes and Ketones
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What type of chemical reaction is this?CH3CHO + NH3 -> CH3CH(OH)NH2
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Which of the following reagent is used to separate and purify carbonyl and non carbonyl compounds?
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Formaldehyde is Industrially Prepared from:
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IUPAC name of propionaldehyde is:
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During oxidation of unsymmetrical ketones which atom is oxidized?
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What one is the correct geometry of acetal?
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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.
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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?
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In Cannizzaro’s reaction, Benzyl alcohol is obtained from?
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Cyanohydrins can be synthesized from ketones through:
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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?
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Treatment of propionaldehyde with Dil. the NaOH solution gives:
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Oxidation of alcohol converts it into?
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Odour of formaldehyde Is:
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In Cannizzaro’s reaction out of two moles, one makes salt of an acid the other makes
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Phenylmethyl ketone can be converted into ethyl benzene in one step by using:
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In the addition of sodium bisulfite to carbonyl system, which of the following is a nucleophile?
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In which of the following reaction alkyl ketones are converted Into carboxylic acid with one carbon atom less than the parent compound?
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Which of the following represent the formula of Ketone?
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Identify the common name of the following compound:
CH₃CH₂COCH₂OH
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Tollen’s test is used for the detection of:
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Methyl ketones can be characterized by performing:
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Meta-formaldehyde molecule has Oxygen MOMS:
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Q.2 Prokaryotic and eukaryotic cells generally have which of the following features in common?
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Aldehyde is prepared industrially by air oxidation of ethylene using catalyst
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Carbonyl group undergoes:
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Hybridization of carbon in -CHO group is:
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Simplest aromatic aldehyde has number of hydrogen atoms.
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H —CHO is:
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Which of the following can be oxidized to an aldehyde?
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Ketone reacts with Grignard reagent to form ______ in acidic media?
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Which one of the following is used in making lozenges?
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What should be added to methane to produce HCN?
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Which of the following Compound is not reduced by NaBH4 ?
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Why is water added after the reduction process of aldehyde and ketone with LiAlH4?
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Ketones and aldehydes are reduced in the presence of catalyst:
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IUPAC Name of formaldehyde is
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What is the color of the precipitate when Brady’s reagent is used to test a benzaldehyde?
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Consider the following reaction:
R―CHO + 2[Ag(NH3)2]OH → R―COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests.
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Methyl Magnesium Bromide reacts with formaldehyde. The product will be:
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The flavour of amyl butyrate is:
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Tincture of Iodine is:
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Butanone on oxidation with K2Cr2O7 / H2SO4 forms:
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Which class of the compounds is represented by the type formula ROR?
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Metaformaldehyde is a result of?
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The general formula for an aldehyde is:
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Ketones undergo reaction with which compound in the presence of acid to form oximes
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In which of the following reagent Cupric citrate complex is formed?
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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?
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Which of the following will not undergo aldol condensation?
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Which of the following reactions is NOT shown by ketones?
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Ketone can be prepared by the oxidation of:
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– ROR is the nucleophile of
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Which of the following does not give iodoform test?
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Paraldehyde is formed by:
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Ali Durrani
