322813
The first chlorinated organic insecticide prepared is:
1 Gammaxene
2 Chloroform
3 \({\mathrm{\mathrm{COCl}_{2}}}\)
4 DDT
Explanation:
Dichloro Diphenyl Trichloro ethane (D.D.T) - the first chlorinated organic insecticide.
KCET - 2024
CHXII10:HALOALKANES AND HALOARENES
322814
The raw materials used for the commercial manufacture of DDT are
1 Chloro benzene and chloroform
2 Chloro benzene and chloro methane
3 Chloro benzene and chloral
4 Chloro benzene and iodoform
Explanation:
Chlorobenzene and chloral undergo condensation reaction to form DDT
CHXII10:HALOALKANES AND HALOARENES
322815
Assertion : Chloral reacts with phenyl chloride to form DDT. Reason : It is an electrophilic substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
When chlorobenzene is heated with chloral in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) a powerful insecticide, DDT is formed with the elimination of water molecule. Hence option (3) is correct
322813
The first chlorinated organic insecticide prepared is:
1 Gammaxene
2 Chloroform
3 \({\mathrm{\mathrm{COCl}_{2}}}\)
4 DDT
Explanation:
Dichloro Diphenyl Trichloro ethane (D.D.T) - the first chlorinated organic insecticide.
KCET - 2024
CHXII10:HALOALKANES AND HALOARENES
322814
The raw materials used for the commercial manufacture of DDT are
1 Chloro benzene and chloroform
2 Chloro benzene and chloro methane
3 Chloro benzene and chloral
4 Chloro benzene and iodoform
Explanation:
Chlorobenzene and chloral undergo condensation reaction to form DDT
CHXII10:HALOALKANES AND HALOARENES
322815
Assertion : Chloral reacts with phenyl chloride to form DDT. Reason : It is an electrophilic substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
When chlorobenzene is heated with chloral in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) a powerful insecticide, DDT is formed with the elimination of water molecule. Hence option (3) is correct
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII10:HALOALKANES AND HALOARENES
322813
The first chlorinated organic insecticide prepared is:
1 Gammaxene
2 Chloroform
3 \({\mathrm{\mathrm{COCl}_{2}}}\)
4 DDT
Explanation:
Dichloro Diphenyl Trichloro ethane (D.D.T) - the first chlorinated organic insecticide.
KCET - 2024
CHXII10:HALOALKANES AND HALOARENES
322814
The raw materials used for the commercial manufacture of DDT are
1 Chloro benzene and chloroform
2 Chloro benzene and chloro methane
3 Chloro benzene and chloral
4 Chloro benzene and iodoform
Explanation:
Chlorobenzene and chloral undergo condensation reaction to form DDT
CHXII10:HALOALKANES AND HALOARENES
322815
Assertion : Chloral reacts with phenyl chloride to form DDT. Reason : It is an electrophilic substitution reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
When chlorobenzene is heated with chloral in the presence of conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) a powerful insecticide, DDT is formed with the elimination of water molecule. Hence option (3) is correct