Description : Propyne can be converted to propene by using (a) H2 + Lindlar's catalyst (b) NH2NH2 (c) H2 + Pt catalyst (d) NH2NH2 + KOH
Last Answer : H2 + Lindlar's catalyst
Description : Proteins are finally converted into: (a) Glucose (b) Amino acid (c) Glycerol (d) Fatty acid
Last Answer : (b) Amino acid
Description : Carbohydrates of all types are converted into : (a) Glucose (b) Glycerol (c)Amino acid (d) None
Last Answer : (a) Glucose
Description : Which of the following alkenes gives only acetic acid on oxidation with hot concentrated KMnO4. (a) Ethylene (b) 1-Butene (c) Propene (d) 2-Butene
Last Answer : 2-Butene
Description : Glycerol is converted into glycerol-3- phosphate by (A) Thiokinase (B) Triokinase (C) Glycerol kinase (D) All of these
Last Answer : Answer : C
Description : Natural rubber is a polymer of – (1) Vinyl acetate (2) Propene (3) Isoprene (4) Styrene
Last Answer : (3) Isoprene Explanation: Natural rubber consists of suitable polymers of the organic compound isoprene, with minor impurities of other organic compounds plus water. Isoprene is produced and emitted by ... trees into the atmosphere (major producers are oaks, poplars, eucalyptus, and some legumes).
Description : PVC is formed by polymerization of - (1) Styrene (2) Acetylene (3) Propene (4) Vinyl Chloride
Last Answer : (4) Vinyl Chloride Explanation: Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer (VCM). About 80% of production involves suspension polymerization.
Description : How will you separate propene from propyne?
Last Answer : Ans. By passing the mixture through ammonical silver nitrate solution when propyne reacts while propene passes over.
Description : Natural rubber is a polymer of (a) Propene (b) Isoprene (c) Formaldehyde (d) Phenol
Last Answer : Isoprene
Description : Which of the reactions between the following pairs of reagents proceeds by a mechanism that may be described as an electrophilic substitution? (a) Benzene + Br2/FeBr3 (b) Propene + Br2 (c) Acetone + NH2NH2 (d) Ethyl bromide + aq KOH
Last Answer : Benzene + Br2/FeBr3
Description : Benzene reacts with propene in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Cumene (d) Nothing happens
Last Answer : Cumene
Description : Hydroboration-oxidation of propene gives : (a) Isopropyl alcohol (b) n-Propyl alcohol (c) Isobutyl alcohol (d) tert-Butyl alcohol
Last Answer : n-Propyl alcohol
Description : 2,2-Dichloropropane reacts with aqueous KOH to give (a) 2,2-Propanediol (b) Propanal (c) Acetone (d) Propene
Last Answer : Acetone
Description : Isopropyl bromide reacts with alcoholic KOH to give (a) Propene (b) Isopropyl alcohol (c) Propane (d) n-Propyl alcohol
Last Answer : Propene
Description : Which of the following statements about propene, CH3CH=CH2, is correct? (a) All nine atoms lie in the same plane. (b) The compound has a cis and trans isomer. (c) There is a total of eight sigma bonds. (d) All the carbon atoms are sp2 hybridized
Last Answer : There is a total of eight sigma bonds.
Description : Propene reacts with Cl2 in H2O to give (a) 1-Chloro-2-propanol (b) 2-Chloro-2-propanol (c) 1-Chloro-1-propanol (d) 2-Chloro-1-propano
Last Answer : 1-Chloro-2-propanol
Description : Hydration of 2-methyl-1-propene (with H2O/H2SO4) gives : (a) CH3CH2CH2OH (b) (CH3)3COH (c) CH3CH2CH2CH2OH (d) (CH3)2CHOH
Last Answer : (CH3)3COH
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 : Which of the following reagents will react with propene? (a) Hot alkaline KMnO4 (b) Sodium metal (c) Cold dilute HNO3 (d) LiAlH4
Last Answer : Hot alkaline KMnO4
Description : Markovnikov's addition of HBr is not applicable to (a) Propene (b) 1-butene (c) 1-pentene (d) 2-butene
Last Answer : 2-butene
Description : Propene reacts with bromine to form 1,2-dibromopropane. This is an example of (a) Nucleophilic addition (b) Electrophilic addition (c) Nucleophilic substitution (d) Electrophilic substitution
Last Answer : Electrophilic addition
Description : In the reaction of propene with HCl, H+ ion acts as the : (a) electrophile (b) carbonium ion (c) nucleophile (d) carbanion
Last Answer : electrophile
Description : Which of the following compounds will show geometrical isomerism? (a) Propene (b) 2-Butene (c) Propyne (d) 2-Butyne
Description : In propene there are (a) eight σ bonds and one π bond (b) seven σ bonds and two π bonds (c) six σ bonds and three π bonds (d) nine σ bonds
Last Answer : eight σ bonds and one π bond
Description : When aniline is heated with glycerol in the presence of sulfuric acid and nitrobenzene, it gives quinoline. This reaction in called (a) Fischer synthesis (b) Skraup synthesis (c) Diazotization (d) Corey-House synthesis
Last Answer : Skraup synthesis
Description : Which of the following statements is not true about phospholipids? (a) They are similar to triacylglycerols except that the middle OH group of glycerol reacts with a phosphate rather than with a ... is a phospholipid. (d) The C-2 carbon of glycerol in phosphoacylglycerols has the R configuration
Last Answer : They are similar to triacylglycerols except that the middle OH group of glycerol reacts with a phosphate rather than with a fatty acid
Description : Saponification of a fat (a) always results in the formation of insoluble soaps (b) produces glycerol and soap (c) is used in the production of detergents (d) is used in the production of lactic acid
Last Answer : produces glycerol and soap
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 is used as an antifreeze? (a) Ethylene glycol (b) Glycerol (c) Diethyl ether (d) Picric acid
Last Answer : Ethylene glycol
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 : The intermediate during the addition of `HCl` to propene in the presence of peroxide is :
Last Answer : The intermediate during the addition of `HCl` to propene in the presence of peroxide is : A. `CH_(3)-overset(* ... D. `CH_(3)-CH_(2)-overset(+)CH_(2)`
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 : How many carbon atoms are there in a molecule of propene?
Last Answer : Need answer
Description : Fat soluble vitamins are (A) Soluble in alcohol (B) one or more Propene units (C) Stored in liver (D) All these
Last Answer : Answer : D
Description : The leaves of a plant first prepare food A by photosynthesis. Food A then gets converted into food What are A and B ? -Science
Last Answer : A is glucose and B is starch.
Description : Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material. (A) Thorium-233 (B) Uranium-235 (C) Uranium-233 (D) Plutonium-239
Last Answer : (C) Uranium-233
Description : What is true about Bt toxin? (a) Bt protein exists as active toxin in the Bacillus. (b) The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication. ... Bacillus has antitoxins. (d) The inactive protoxin gets converted into active form in the insect gut.
Last Answer : (d) The inactive protoxin gets converted into active form in the insect gut.
Description : Salt A commonly used in bakery products on heating gets converted into another salt B which itself is used for removal the hardness of water and a gas C is evolved. The gas C when passed through lime water ,turns it ... © A is baking soda ,B is washing soda and C is carbon dioxide (d) both a and c
Last Answer : (d) both a and c
Description : Volute of a centrifugal pump should be designed in a fashion, such that the (A) Kinetic head gets converted into static head (B) Moving stream gradually reduces velocity (C) Mean velocity remains constant (D) None of these
Last Answer : (A) Kinetic head gets converted into static head
Description : Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This ... Hydrological cycle (B) Water cycle (C) Evaporation and precipitation cycle (D) All the above
Last Answer : (D) All the above
Description : The gaseous form of chlorine gets converted into liquid form when subjected to a pressure of (A) 5 kg/cm2 (B) 6 kg/cm2 (C) 7 kg/cm2 (D) 10 kg/cm
Last Answer : (C) 7 kg/cm
Description : In a breeder reactor --------- a. amount of fuel decreases b. amount of fuel increases c. amount of fuelremain same d. fissile material is converted in to fertile
Last Answer : b. amount of fuel increases
Description : Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II. Column I Column II (a) Glycerol, fatty acids Duodenum, ... , glucose Small intestine, active absorption (d) Fructose, Na+ Small intestine, passive absorption
Last Answer : (c) Glycine, glucose Small intestine, active absorption
Description : Assertion :- Bile helps in emulsification of fats. Reason `:-` During emulsification fat is brokendown into fatty acid and glycerol.
Last Answer : Assertion :- Bile helps in emulsification of fats. Reason `:-` During emulsification fat is brokendown ... D. If both Assertion & Reason are false.
Description : Glycerol on treatment with oxalic acid at `110^(@)C` forms
Last Answer : Glycerol on treatment with oxalic acid at `110^(@)C` forms A. Allyl alcohol B. Formic acid C. `CO_(2)` and `CO` D. Glyceric acid
Description : What is found at the end of a fatty acid that does not attach to glycerol?
Last Answer : The carboxyl group -COOH attaches to glycerol. The other end is a hydrocarbon chain.
Description : Glycerol-3-phosphate for the synthesis of triglycerides in adipose tissue is derived from (A) Phosphatidic acid (B) Diacylglycerol (C) Glycerol (D) Glucose
Description : In the biosynthesis of triglycerides from glycerol 3-phosphate and acyl-CoA, the first intermediate formed is (A) 2-Monoacylglycerol (B) 1, 2-Diacylglycerol (C) Lysophosphatidic acid (D) Phosphatidic acid
Description : The glycerol for fatty acid esterification in adipocytes is (A) For the most part, derived from glucose (B) Obtained primarily from phosphorylation of glycerol by glycerol kinase (C) Formed from gluconeogenesis (D) Formed from glycogenolysis ENZYMES 153
Last Answer : Answer : A