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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which of the following compound will yield 2,5- dimethylhexan-1,6-dial upon ozonolysis?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

On reductive ozonolysis yields

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which of the following yield 2 moles of formaldehyde on ozonolysis?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which compound would give 5 – keto – 2 – methyl hexanal upon ozonolysis? (a) (b) (c) (d)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which of the compounds with molecular formula C5H10 yields acetone on ozonolysis?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which of the following gases when passed through warm dilute solution of H2SO4 in presence of HgSO4 gives acetaldehyde?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

When but-2-yne is treated dil.H2SO4/HgSO4 the product formed is :

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which of the following on heating with aqueous KOH, produces acetaldehyde ?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

A and B are respectively.

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Complete the reaction: Ph −CH = CH −CHO PhMgBr/H3O+ → Product

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which of the following is the industrial method of preparation of acetaldehyde?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Arrange the following compounds in decreasing order of their boiling points. CH3CHO, CH3CH2OH, CH3OCH3, CH3CH2CH3

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Ketones where R = R1 = alkyl group. It can be obtained in one step by

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Aldehydes are the first oxidation product of

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

An organic compound X on treatment with pyridinium chloro chromate in dichloromethane gives compound Y. Compound Y reacts with I2 and alkali to form triiodomethane. The compound ‘X’ is

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Oxidation reactions can be carried out with chromic acid in aqueous acetone at 5–10°C.Which of following is incorrect in this respect (a) (b)

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

The oxidation product of 2-propanol with hot conc. HNO3 is

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Methyl ethyl ketone is prepared by the oxidation of

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Which one of the following can be oxidised to the corresponding carbonyl compound?

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

The oxidation of toluene to benzaldehyde by chromyl chloride is called

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Acetone on distillation with conc. H2SO4 forms

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Consider the following statement Acetophenone can be prepared by (1) Oxidation of 1-phenyethanol (2) Reaction of 1-phenylethanol with methyl magnesiumbromide (3) Friedel Craft’s reaction of benzene with acetyl chlorid…

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

Dry heating of calcium acetate gives

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

On heating calcium acetate and calcium formate, the product formed is

MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketones

In the following reaction, product P is

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