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Earn 100

What are freons? Give one example.

Important Questions on Halogen Derivatives

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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Which one acts as refrigerant?
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
To get DDT, chlorobenzene has to react with the following compound in presence of concentrated sulphuric acid
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides

In the following sequence of reactions, the gaseous species A, B, D, E, respectively, are

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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
When CHCl3 is boiled with NaOH, it gives
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Write one harmful environmental effect of freons.
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Write full name of DDT.
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Which of the following is true about freons?
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Tear gas is:
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Prolonged exposure of chloroform in humans may cause damage to liver. It is due to the formation of the following compound :
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Write the uses of freon. What is its impact on environment?
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is:
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides

Which one of the following compound reacts with chlorobenzene to produce DDT?

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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Statement I:    Acetone on reaction with [X] produces a compound [Y] which is used as an antiseptic.
Statement II:   The compound [Y] produces free iodine so it is used as an antiseptic.
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Which of the following is responsible for depletion of ozone in upper strato of the atmosphere-
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
CFCl3 is responsible for the decomposition of ozone to oxygen. Which of the following reacts with ozone to form oxygen?
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Which compound gives a yellow precipitate with AgNO3?
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides

Which one of the following pairs is the strongest pesticide ?

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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
DDT is -
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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides

Chlorobenzene reacts with trichloro acetaldehyde in the presence of  H2SO4
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The major product formed is :

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Chemistry>Organic Chemistry>Halogen Derivatives>Uses and Effects of Some Alkyl and Aryl Halides
Chlorobenzene reacts with _____ in presence of conc. H2SO4 to form D.D.T.