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Benzene reacts with n-propylchloride in presence of anhydrous AlCl3 to predominantly yield ...
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The effective electrophile in aromatic sulphonation is ...
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A metadirecting group ...
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Benzene on treatment with a mixture of conc. HNO3 and conc. H2SO4 at 100°C gives ...
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Which of the following order is correct regarding the activity of o- p- director? ...
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The ortho/para directing group among the following is ...
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The function of AlCl3 in the Friedal-Crafts reaction is ...
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the compound which can be most easily sulphnated is ...
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Which one of the following will be most easily attacked by an electrophile ...
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The correct order of reactivity in electrophilic substitution reactions of the following compounds (1) Benzene (2) Toluene (3) Chlorobenzene (4) Nitrobenzene ...
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When CH3Cl and AlCl3 are used in Fridel-Crafts reaction, the electrophile is ...
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In the following reaction, C2H2 H2O(HgSO4/H2SO4) > X [eq] CH3CHO what is X? ...
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propyne and propene can be distinguished by ...
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The alkene C6H10 producing OHC(CH2)4CHO on ozonolysis is ...
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Anti-Markovnikov's addition of HBr is not observed in ...
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When propyne is treated with aqueous H2SO4 in presence of HgSO4, the major product is ...
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The intermediate during the addition of HCl to propene in the presence of peroxide is ...
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An alkene having molecular formula C7H14 was subjected to ozonolysis in the presence of Zn dust. An equimolar amount of the following two compounds are formed. acetone and butanone the alkene is ...
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The reaction of propene with HOCl proceeds via the addition of ...
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The reagent which can easily distinguish between 1-butyne and 2-butyne is ...
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Which of the following heptanols can be dehydrated to hept-3-ene only? ...
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Three circles touch each other externally. The tangents at their point of contact meet at a point whose distance form a point of contact is 4. Then the ratio of the product to the sum of radii of the circles is ...
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ABC is an isosceles Δ in which AB=AC, A=120° and the radius of the incircle is √3. Then the area of the triangle ABC is ...
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A circle touches two of the smaller sides of ΔABC where a<b<c and has its centre at on the greatest side. then the radius of the circle is ...
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Which of the following is not aromatic? ...
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Which of the following is aromatic? ...
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Which of the following is aromatic? ...
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Which of the following compounds is not aromatic? ...
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The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation is ...
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The number of possible theoretical conformation of ethane are ...
asked2009-04-15 21:12:46