322800
Which one of the following has antiseptic property?
1 Dichloromethane
2 Trifluoromethane
3 Triiodomethane
4 Tetrachloromethane
Explanation:
Triiodomethane \(\left( {{\rm{CH}}{{\rm{I}}_{\rm{3}}}} \right)\) when comes in contact with organic matter decomposes easily to free iodine which has antiseptic property.
CHXII10:HALOALKANES AND HALOARENES
322801
Iodoform can be prepared from all except
1 Ethyl methyl ketone
2 Isopropyl alcohol
3 3-Methyl-2-butanone
4 Isobutyl alcohol
Explanation:
Iodoform reaction is given by alcohols and ketones containing and group, respectively. Thus, it does not given by isobutyl alcohol as it does not contain group.
Hence, compounds (1), (2) and (3) will give iodoform while compound (4) (isobutyl alcohol) does not give any iodoform reaction.
CHXII10:HALOALKANES AND HALOARENES
322802
Which among the following compounds is used to decaffeinate coffee?
1 Iodoform
2 Carbon tetrachloride
3 Methylene dichloride
4 Chloroform
Explanation:
Methylene dichloride is used as a solvent in the direct method of decaffeination of the coffee.
MHTCET - 2019
CHXII10:HALOALKANES AND HALOARENES
322803
Reaction of methylene chloride with excess of benzene in presence of anhydrous \(\mathrm{AlCl}_{3}\) gives
322800
Which one of the following has antiseptic property?
1 Dichloromethane
2 Trifluoromethane
3 Triiodomethane
4 Tetrachloromethane
Explanation:
Triiodomethane \(\left( {{\rm{CH}}{{\rm{I}}_{\rm{3}}}} \right)\) when comes in contact with organic matter decomposes easily to free iodine which has antiseptic property.
CHXII10:HALOALKANES AND HALOARENES
322801
Iodoform can be prepared from all except
1 Ethyl methyl ketone
2 Isopropyl alcohol
3 3-Methyl-2-butanone
4 Isobutyl alcohol
Explanation:
Iodoform reaction is given by alcohols and ketones containing and group, respectively. Thus, it does not given by isobutyl alcohol as it does not contain group.
Hence, compounds (1), (2) and (3) will give iodoform while compound (4) (isobutyl alcohol) does not give any iodoform reaction.
CHXII10:HALOALKANES AND HALOARENES
322802
Which among the following compounds is used to decaffeinate coffee?
1 Iodoform
2 Carbon tetrachloride
3 Methylene dichloride
4 Chloroform
Explanation:
Methylene dichloride is used as a solvent in the direct method of decaffeination of the coffee.
MHTCET - 2019
CHXII10:HALOALKANES AND HALOARENES
322803
Reaction of methylene chloride with excess of benzene in presence of anhydrous \(\mathrm{AlCl}_{3}\) gives
322800
Which one of the following has antiseptic property?
1 Dichloromethane
2 Trifluoromethane
3 Triiodomethane
4 Tetrachloromethane
Explanation:
Triiodomethane \(\left( {{\rm{CH}}{{\rm{I}}_{\rm{3}}}} \right)\) when comes in contact with organic matter decomposes easily to free iodine which has antiseptic property.
CHXII10:HALOALKANES AND HALOARENES
322801
Iodoform can be prepared from all except
1 Ethyl methyl ketone
2 Isopropyl alcohol
3 3-Methyl-2-butanone
4 Isobutyl alcohol
Explanation:
Iodoform reaction is given by alcohols and ketones containing and group, respectively. Thus, it does not given by isobutyl alcohol as it does not contain group.
Hence, compounds (1), (2) and (3) will give iodoform while compound (4) (isobutyl alcohol) does not give any iodoform reaction.
CHXII10:HALOALKANES AND HALOARENES
322802
Which among the following compounds is used to decaffeinate coffee?
1 Iodoform
2 Carbon tetrachloride
3 Methylene dichloride
4 Chloroform
Explanation:
Methylene dichloride is used as a solvent in the direct method of decaffeination of the coffee.
MHTCET - 2019
CHXII10:HALOALKANES AND HALOARENES
322803
Reaction of methylene chloride with excess of benzene in presence of anhydrous \(\mathrm{AlCl}_{3}\) gives
322800
Which one of the following has antiseptic property?
1 Dichloromethane
2 Trifluoromethane
3 Triiodomethane
4 Tetrachloromethane
Explanation:
Triiodomethane \(\left( {{\rm{CH}}{{\rm{I}}_{\rm{3}}}} \right)\) when comes in contact with organic matter decomposes easily to free iodine which has antiseptic property.
CHXII10:HALOALKANES AND HALOARENES
322801
Iodoform can be prepared from all except
1 Ethyl methyl ketone
2 Isopropyl alcohol
3 3-Methyl-2-butanone
4 Isobutyl alcohol
Explanation:
Iodoform reaction is given by alcohols and ketones containing and group, respectively. Thus, it does not given by isobutyl alcohol as it does not contain group.
Hence, compounds (1), (2) and (3) will give iodoform while compound (4) (isobutyl alcohol) does not give any iodoform reaction.
CHXII10:HALOALKANES AND HALOARENES
322802
Which among the following compounds is used to decaffeinate coffee?
1 Iodoform
2 Carbon tetrachloride
3 Methylene dichloride
4 Chloroform
Explanation:
Methylene dichloride is used as a solvent in the direct method of decaffeination of the coffee.
MHTCET - 2019
CHXII10:HALOALKANES AND HALOARENES
322803
Reaction of methylene chloride with excess of benzene in presence of anhydrous \(\mathrm{AlCl}_{3}\) gives
322800
Which one of the following has antiseptic property?
1 Dichloromethane
2 Trifluoromethane
3 Triiodomethane
4 Tetrachloromethane
Explanation:
Triiodomethane \(\left( {{\rm{CH}}{{\rm{I}}_{\rm{3}}}} \right)\) when comes in contact with organic matter decomposes easily to free iodine which has antiseptic property.
CHXII10:HALOALKANES AND HALOARENES
322801
Iodoform can be prepared from all except
1 Ethyl methyl ketone
2 Isopropyl alcohol
3 3-Methyl-2-butanone
4 Isobutyl alcohol
Explanation:
Iodoform reaction is given by alcohols and ketones containing and group, respectively. Thus, it does not given by isobutyl alcohol as it does not contain group.
Hence, compounds (1), (2) and (3) will give iodoform while compound (4) (isobutyl alcohol) does not give any iodoform reaction.
CHXII10:HALOALKANES AND HALOARENES
322802
Which among the following compounds is used to decaffeinate coffee?
1 Iodoform
2 Carbon tetrachloride
3 Methylene dichloride
4 Chloroform
Explanation:
Methylene dichloride is used as a solvent in the direct method of decaffeination of the coffee.
MHTCET - 2019
CHXII10:HALOALKANES AND HALOARENES
322803
Reaction of methylene chloride with excess of benzene in presence of anhydrous \(\mathrm{AlCl}_{3}\) gives
