Description : Propene reacts with HBr in the presence of a peroxide to give (a) n-Propyl bromide (b) Allyl bromide (c) Isopropyl bromide (d) Vinyl bromide
Last Answer : n-Propyl bromide
Description : Pungency of onion is due to
Last Answer : Ans. Allyl Propide di-sulphide
Description : Which of the following can undergo nucleophilic substitution under ordinary conditions? I Allyl chloride II Benzyl chloride III n-Propyl chloride IV V
Last Answer : Which of the following can undergo nucleophilic substitution under ordinary conditions? I Allyl chloride II ... are correct D. I and III are correct
Description : Red color of onion is caused due to the presence of - a) Zinc b) Sulpher c) Iron d) Anthocynin
Last Answer : d) Anthocynin
Description : Pungency in garlic is due to
Last Answer : Ans. Alicin, Allinase
Description : Is it possible to build up a resistance to capsaicin?
Last Answer : answer:You can definitely work up a tolerance. I went through a period where I ate five-star Thai food all the time. I have since lost that tolerance. I don’t think you would get to the point where you are not affected at all.
Description : The cause of hotness in Chillies is: a. Cucurbitacin b. Capsaicin c. Allicin d. All of above
Last Answer : Capsaicin
Description : The cause of pungency in chilli
Last Answer : Ans. Capsicin
Description : Irritation of eye due to cutting onion is due to presence of
Last Answer : Ans. Pyruvic acid (IV) ORNAMENTAL HORTICULTURE
Description : In Onion purple blotch on leaves is due to — pest a. Mealy bug b. Thrips c. Mites d. Cut worm
Last Answer : b. Thrips
Description : The formula of the isothiocyanate is
Last Answer : The formula of the isothiocyanate is A. `OCN^(-)` B. `SCN^(-)` C. `ONC^(-)` D. `CN^(-)`
Description : One round of Edman degradation of the peptide: H2N- Gly-Arg-Lys-Phe- Asp- COOH would result in which of the following structures or their phenyl isothiocyanate derivatives? (A) H2N-Gly-Arg-COOH + H2N-Lys- Phe- Asp- ... C) H2N-Arg-Lys-Phe-Asp-COOH + Gly (D) H2N-Gly-Arg-Lys-COOH + H2N-Phe -Asp-COOH
Last Answer : Answer : C
Description : Gas released during Bhopal tragedy was – (1) Sodium isothiocyanate (2) Potassium isothiocyanate (3) Ethyl isothiocyanate (4) Methyl isothiocyanate
Last Answer : (4) Methyl isothiocyanate Explanation: Methyl isocyanate is an intermediate chemical in the production of carbamate pesticides. As a highly toxic and irritating material, it is extremely hazardous to human ... killed nearly 8,000 people initially and approximately 20,000 to 30,000 people in total.
Description : Gas released during Bhopal tragedy was - (1) Sodium isothiocyanate (2) Ethyl isothiocyanate (3) Potassium isothiocyanate (4) Methyl isothiocyanate
Last Answer : (4) Methyl isothiocyanate Explanation: The Bhopal disaster or Bhopal gas tragedy was an industrial accident. It happened at a Union Carbide subsidiary pesticide plant in the city of Bhopal, India. On ... tonnes of toxic Methyl Isocyanate (MIC) gas, exposing more than 500,000 people to toxic gases.
Description : The toxic gas released from Bhopal Gas Tragedy was (a) Methyl Isocyanate (b) Potassium Isocyanate (c) Sodium Isocyanate (d) Methyl Isothiocyanate
Last Answer : (a) Methyl Isocyanate
Description : Gas released during Bhopal tragedy was : (1) Sodium isothiocyanate (2) Potassium isothiocyanate (3) Ethyl isothiocyanate (4) Methyl isothiocyanate
Last Answer : Methyl isothiocyanate
Description : Why is there no presence of starch in Onion?
Last Answer : What is the answer ?
Description : What is Allyl ?
Last Answer : : The short form of allelomorph is allele. One of the pairs of genes that control the specific characteristics of an organism located in a specific locus of homologous chromosome pairs is called the allele of the other.
Description : (A) In allylic substitution propene gives allyl bromide. (R) NBS is a selective brominating agent and gives substitution at the alpha carbon with resp
Last Answer : (A) In allylic substitution propene gives allyl bromide. (R) NBS is a selective brominating agent and gives ... (A) is incorrect but (R) is correct.
Description : (A) Allyl free radical is more stable than simple alkyl free radical. (R) The allyl free radical is stabilized by resonance.
Last Answer : (A) Allyl free radical is more stable than simple alkyl free radical. (R) The allyl free radical is ... IF (A) is incorrect but (R) is correct.
Description : Arrange the following free radicals in order of decreasing stability: Methyl(I), Vinly(II), Allyl(III), Benzyl(IV)
Last Answer : Arrange the following free radicals in order of decreasing stability: Methyl(I), Vinly(II), Allyl(III), Benzyl(IV) ... gt III D. IV gt III gt I gt II
Description : How many of the following compounds would give turbidity with lucas reagent without heating (1) Benzyl alcohol (2) Allyl alcohol (3) Cyclohexanol (4)
Last Answer : How many of the following compounds would give turbidity with lucas reagent without heating (1) ... methyl carbionol (9) P-Nitro benzyl alcohol
Description : Orlon is prepared by the polymerisation of (a) Vinyl cyanide (b) Allyl alcohol (c) Vinyl chloride (d) Allyl chloride
Last Answer : Vinyl cyanide
Description : Which of the following reagents can be used to distinguish between chlorobenzene and allyl chloride? (a) H2/Ni (b) Br2 in CCl4 (c) Zn/HCl (d) NH2NH2
Last Answer : Br2 in CCl4
Description : When glycerol is heated with potassium hydrogen sulfate (KHSO4), it forms (a) Acrolein (b) Acetic acid (c) Allyl alcohol (d) Propionic acid
Last Answer : Acrolein
Description : When glycerol is heated with oxalic acid at 260°C, it gives (a) 1,2-Propanediol (b) Vinyl alcohol (c) 1,3-Propanediol (d) Allyl alcohol
Last Answer : Allyl alcohol
Description : Which of the following compounds will give a white precipitate with alcoholic AgNO3? (a) Vinylbenzene (b) Chlorobenzene (c) Vinyl chloride (d) Allyl chloride
Last Answer : Allyl chloride
Description : Largest pre-emergence herbicide for weed control in citrus and pineapple orchards a). Atrazine b). Metham c). Allyl d). All
Last Answer : b). Metham
Description : Herbicide commonly available as fumigant is a). Methyl bromide b). Metham c). Allyl alcohol d). All of these
Last Answer : d). All of these
Description : Which of the following is a deep rooted crop? a. Rice b. Sugarcane c. Potato d. Onion
Last Answer : b. Sugarcane
Description : What is the optimum spacing required for planting onion seedlings during Rabi season? a. 25*25 cm B. 20*20 cm C. 5*5 cm D. 10*10 cm
Last Answer : D. 10*10 cm
Description : Zingiberaceae family is of — crop a. Potato b. Jute c. Turmeric d. Onion
Last Answer : c. Turmeric
Description : Phule keshari, Phule Raja are improved variety of — vegetable crop ? a. Onion b. Brinjal c. Tomato d. Pea
Last Answer : c. Tomato
Description : Buttoning is a physiological disorder in a. Cabbage b. Onion c. Garlic d. Cauliflower
Last Answer : a. Cabbage
Description : Which of the following crop shows protandry condition ? a. Onion b. Maize c. Sugar Beet d. All of these
Last Answer : d. All of these
Description : Which crop is grown as trap crop for nematode ? • Brinjal • Cabbage • Tomato • Onion
Last Answer : • Tomato
Description : Suerkraut is value added product prepared from • Garlic • Onion • Chilli • Cabbage
Last Answer : • Cabbage
Description : What is the optimum pH range for the cultivation of onion? a. 3.2-4.0 b. 5.8-6.5 c. 4.2-5.0 d. 8.9-10.6
Last Answer : b. 5.8-6.5
Description : Maximum percentage of insecticide is used in — crop. a. Brinjal b. Onion c. Cotton d. Sorghum
Last Answer : c. Cotton
Description : Pusa Kesar is a variety of a. Caroot b. Onion c. Brinjal d. Potato
Last Answer : a. Caroot
Description : Which crop is grown as trap crop for nematode ? a. Brinjal b. Cabbage c. Tomato d. Onion
Description : Particle gun method of gene transformation was first used by Klein in — crop. a. Tomato b. Brinjal c. Onion d. Castor
Last Answer : c. Onion
Description : Dee Gee Woo Gen is the source of dwarfing gene in — a. Wheat b. Bajara c. Rice d. Onion
Last Answer : c. Rice
Description : The color of Red soil is red due to the presence of the which of the following oxides? a. Ferric b. Aluminium c. Phosphorus d. Calcium
Last Answer : a. Ferric
Description : What are the chemical signals of iso propyl ?
Last Answer : Chemical signal of iso propyl CH3CH (OH) CH3.
Description : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the major product. This is because the addition proc
Last Answer : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the ... D. none of the above is a correct statement
Description : Propyl alcohol?
Last Answer : DefinitionPropyl alcohol is a clear liquid commonly used as a germ killer (antiseptic). This article discusses poisoning from swallowing propyl alcohol.This is for information only and not for use in the treatment ... immediate medical help. DO NOT make a person throw up unless told to do so by
Description : Alcohol prepared by the distillation of wood is: (1) Propyl alcohol (2) Methyl alcohol (3) Ethyl alcohol (4) Glycerolx
Last Answer : (2) Methyl alcohol Explanation: Alcohol prepared by the distillation of wood is Methyl alcohol. It is also called wood spirit.