Polyhalogen Compounds
Trending Questions
The mechanism of SN1 reaction is given as:
A student writes general characteristics based on the given mechanism as:
(a) The reaction is favored by weak nucleophiles.
(b) R would be easily formed if the substituents are bulky.
(c) The reaction is accompanied by racemization.
(d) The reaction is favored by non-polar solvents. Which observations are correct?
(a) and (b)
(a), (b) and (c)
(a) and (c)
(b) and (d)
Which conformation of C6H6CI6 is most powerful insecticide
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Carbyl amine test is performed in alcoholic KOH by heating a mixture of
Chloroform with silver powder
Trihalogenated methane and a primary amine
An alkyl halide and primary amine
An alkyl cyanide and a primary amine
- Boric acid
- Iodoform
- Dettol
- Tincture of iodine
- in refrigerator
- for dissolving impurities in metallurgical process
- as local anaesthetic
- in printing industry
- Iodoform
- Tincture of iodine
- Dettol
- Boric acid
- Iodination
- Oxidation
- Hydrolysis
- dehydration
A sample of chloroform before being used as an anaesthetic agent is tested by
Fehling's solution
Ammoniacal cuprous chloride
Silver nitrate solution in the cold
Silver nitrate solution after boiling with alcoholic KOH
Which conformation of C6H6CI6 is most powerful insecticide
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Phosgene is the common name for
[DPMT 1983; CPMT 1993; MP PMT 1994;
Kurukshetra CEE 1998; RPMT 2000, 02]
Carbon dioxide and Phosphine
Phosphoryl chloride
Carbonyl chloride
Carbon tetrachloride
Chronic chloroform exposure may cause damage to the liver and kidney, due to the formation of:
Phosgene
Methyl chloride
Carbon tetrachloride
Phosphoryl chloride
[where x + y = 4]. These compounds are not used because
[RPET 2000]
These are fluoro carbons
These are difficult to synthesise
They deplete ozone layer
None of the these
Benzene hexachloride (BHC) is used as
[MP PMT 1994; KCET 1999]
Dye
Antimalerial drug
Antibiotic
Insecticide
Which of the following compounds does not undergo nucleophilic
substitution reactions
[KCET 1998]
Vinyl chloride
Ethyl bromide
Benzyl chloride
Isopropyl chloride
[where x + y = 4]. These compounds are not used because
[RPET 2000]
These are fluoro carbons
These are difficult to synthesise
They deplete ozone layer
None of the these
The statement, "the amount of ozone in the atmosphere is decreased by the chlorofluorocarbon CI2F2C"
is true
is false
- is true only in presence of CO2
is true only in absence of CO2
Benzene hexachloride (BHC) is used as
[MP PMT 1994; KCET 1999]
Dye
Antimalerial drug
Antibiotic
Insecticide
Which of the following compounds does not undergo nucleophilic
substitution reactions
[KCET 1998]
Vinyl chloride
Ethyl bromide
Benzyl chloride
Isopropyl chloride
Which of the following is known as freon which is used as a
[DPMT 1982; CPMT 1979, 81, 89; AFMC 1995;
Manipal MEE 1995; MP PET 1995, 2004]Which is used in the manufacture of plastic
Ethyl bromide can be converted into ethyl alcohol by
[KCET 1989]
Heating with dilute hydrochloric acid and zinc
Boiling with an alcoholic solution of KOH
The action of moist silver oxide
Refluxing methanol