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An aqueous solution containing 0.10 g of KIO3 (formula weight=214) was treated with an excess of KI solution. The solution was acidified with HCl. The liberated I2 consumed 28 ml of thiosulphate solution to decolourize th ...

One gram of commercial AgNO3 is dissolved in 50 ml of a KI solution. The silver iodide thus precipitated is filtered off. Excess of KI in the filtrate is titrated with 0.1 M KIO3 solution in presence of 6 M HCl till I- ions a ...

The composition of a sample of iron oxide is Fe0.8O1.0. What percentage of the iron is present in the form of Fe(III)? ...

Five ml of 4N nitric acid, 2 ml of 5N hydrochloric acid and a certain volume of 17M sulphuric acid are mixed together and made upto 2 litre. Thirty ml of this acid mixture exactly neutralize 42.9 ml of sodium carbonate soluti ...

Hydroxylamine reduces iron(III) to iron(II) and is itself oxidized to N2O. Iron(II) thus produced is estimated by titration with a standard permanganate solution in acidic medium. A 10 ml sample of hydroxylamine solution was ...

1. COFFEE IS KEPT IN A CUP WITH A TEMPERATURE OF 15°C. THE ROOM TEMPERATURE = 30°C.WHERN WILL THE COFFEE ATTAIN ROOM TEMPERATURE? ...

Which of the following on oxidation with alkaline KMnO4 followed by acidification with dil HCl does not give benzoic acid? ...

Benzene reacts with n-propylchloride in presence of anhydrous AlCl3 to predominantly yield ...

The effective electrophile in aromatic sulphonation is ...

A metadirecting group ...

Benzene on treatment with a mixture of conc. HNO3 and conc. H2SO4 at 100°C gives ...

Which of the following order is correct regarding the activity of o- p- director? ...

The ortho/para directing group among the following is ...

The function of AlCl3 in the Friedal-Crafts reaction is ...

the compound which can be most easily sulphnated is ...

Which one of the following will be most easily attacked by an electrophile ...

The correct order of reactivity in electrophilic substitution reactions of the following compounds (1) Benzene (2) Toluene (3) Chlorobenzene (4) Nitrobenzene ...

When CH3Cl and AlCl3 are used in Fridel-Crafts reaction, the electrophile is ...

In the following reaction, C2H2 H2O(HgSO4/H2SO4) > X [eq] CH3CHO what is X? ...

propyne and propene can be distinguished by ...

The alkene C6H10 producing OHC(CH2)4CHO on ozonolysis is ...

Anti-Markovnikov's addition of HBr is not observed in ...

When propyne is treated with aqueous H2SO4 in presence of HgSO4, the major product is ...

The intermediate during the addition of HCl to propene in the presence of peroxide is ...

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 ...

The reaction of propene with HOCl proceeds via the addition of ...

The reagent which can easily distinguish between 1-butyne and 2-butyne is ...

Which of the following heptanols can be dehydrated to hept-3-ene only? ...