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Quiz Hard 3

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Quiz Hard 3

1 / 30

The element having highest ionization energy and least electron affinity belongs to

2 / 30

An impure sample of camphor, contaminated with sand, can be purified by

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The electronegativity of the follow, elements increases in the order

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The reagent which can be react with 1- chlorobutane to give subsitution products is

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Phenol on reaction with ethanoic anhydride in the presence of sodium ethanoate give

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In a period, the element with largest atomic volume belongs to

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The Langmuir theory of unimolecular adsorption is generally valid at

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Point out the incorrect statement

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How many normal modes of vibration are possible for CO2 molecule?

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The electrophile in the sulphonation of benzene is

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The commonly used units for wavelength is

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The most approprite reaction for conversion of bromobenzene to benzoic acid is

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The tyndall effect is not observed in

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Polarising power of an ion is given by

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Conjugation of chromophore

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The stabilization of the dispersed phase lyophobic sol is due to

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The light absorbed in IN and 'viaillle region causes

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Eosin dye belongs to the group of dyes known as

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The hydrolysis of methyl acetate is a reaction of

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. An element with atomic number 20 is placed in which period of the periodic table

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Weak acids have Ka value

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In the system CaF2 — CaCl2, the reaction CaF2(s) + Melt « CaF2 . CaCl2(8) is called

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Identify a dye which was not originally obtained from plant source

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An element with half-filled 4p subshell belongs to group

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Vitamin DI is chemically known as

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The electronegativities of C, N, Oand F in the order

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H2S is stronger acid than H2O due to the reason that

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Which of the following is an azo dye?

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Vacuum ultraviolet region is

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A chromophore is an isolated fractional group which has

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