Description : What would be the produt formed when 1-bromo-3 chorocyclobutane reacts with two equivalents of metallic sodium in ether ? .
Last Answer : What would be the produt formed when 1-bromo-3 chorocyclobutane reacts with two equivalents of metallic sodium in ether ? . A. B. C. D.
Description : The hydrolysis of 2-bromo-3-methylbutane by `S_(N^(1))` mechanism gives meinly:
Last Answer : The hydrolysis of 2-bromo-3-methylbutane by `S_(N^(1))` mechanism gives meinly: A. 3-methyl-2- ... . 2,2-dimethyl-2-propanol D. 2-methyl-1-butanol
Description : How can tri substitution of Bromine be prevented in aniline ? OR How can we prepare mono bromo aniline ?
Last Answer : Because of high reactivity of aromatic amines substitution tends to occur at o- and ppositions. Monosubstituted aniline can be prepared by protecting — NH2 group by acetylation with acetic anhydride, then carrying out substitution followed by hydrolysis of substituted amide.
Description : The reaction of 1-butene with bromine, Br2, in aqueous solution gives primarily 1-bromo-2-butanol. Identify the nucleophilic species in the reaction. (a) Br2 (b) Br– (c) H2O (d) HOBr
Last Answer : H2O
Description : What compound results from the 1,4-addition of one equivalent of HBr to 1,3-butadiene? (a) 1-bromo-1-butene (b) 2-bromo-2-butene (c) 4-bromo-1-butene (d) 1-bromo-2-butene
Last Answer : 1-bromo-2-butene
Description : 1,3-Butadiene reacts with bromine to mainly give (a) 3,4-Dibromo-1-butene (b) 4-Bromo-1-butene (c) 1,4-Dibromo-2-butene (d) 1-Bromo-2-butene
Last Answer : 1,4-Dibromo-2-butene
Description : The 1H NMR spectrum of 2-bromo-2-methylpropane will consist of? a. three quartets and a singlet b. two doublets and a singlet c. two singlets d. one singlet
Last Answer : d. one singlet
Description : How many hydrogen atoms are there in the organic compound 1,1,2,2-tetrabromoethane (read: tetra - bromo - ethane)?
Last Answer : ANSWER: 2
Description : CONDENSED STRUCTURE OF THE FOLLOWING1. 5,5 – diethyl – 3,3 – dimethyl – 1 - octyne2. 2,4,4,6 – tetraethyl – 3,3 – nondiene3. 1,1,4,4 – tetramethylheptaneIDENTIFY IF ITS ALKANE ALKYNE ALKENE?
Last Answer : ℤ.
Description : What kind of bonds does alkene form ?
Last Answer : Alkene forms one bond at a time.
Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co
Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture
Description : Alkene `A(Me_2 C = CMe_2)` is more stable than alkene `B(Et_2 C = Cet_2)`. Baker-Nathan effect.
Last Answer : Alkene `A(Me_2 C = CMe_2)` is more stable than alkene `B(Et_2 C = Cet_2)`. Baker-Nathan effect. A. If ... . D. IF (A) is incorrect but (R) is correct.
Description : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When the mixture of R and S is heated with NaOH
Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. When ... ))overset(|)(C)-CH_(2)-CH=O+CH_(2)=O`
Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. ... (|)overset(CH_(3))overset(|)(C)-CH=CH_(2)`
Last Answer : P is an alcohl which on heating with `Al_(2)O_(3)` forms an alkene Q.Q on ozonolysis produces R and S. ... (3))overset(|)(CH)-CH_(2)-COCl+CH_(3)MgCl`
Description : An alcohol (A) on heating with concentrated `H_(2)SO_(4)` gives alkene (B) as major product and (B) can shown the geometrical isomerism . The compound
Last Answer : An alcohol (A) on heating with concentrated `H_(2)SO_(4)` gives alkene (B) as major product and (B) can ... 2) CH (OH) CH_(3)` D. All of the above
Description : When vapours of an alcohol are passed over hot reduced copper, it gices an alkene. The alcohol is
Last Answer : When vapours of an alcohol are passed over hot reduced copper, it gices an alkene. The alcohol is A. Primary B. Secondary C. Tertiary D. None of these
Description : The maximum number of isomers for an alkene with molecular formula C4H8 is?
Last Answer : 4
Description : The first member of the alkene hydrocarbon group is
Last Answer : Ethene.
Description : The general formula of alkene
Last Answer : is C n H 2n .
Description : Classify the following into saturated and unsaturated hydrocarbons – Benzene, cyclopropane, alkene and alkane, methane, ethene, Propyne, butene
Last Answer : Saturated: Alkane, cyclopropane, methane Unsaturated: Benzene, alkene, ethene, Propyne, butene
Description : A compound of formula C6H12 does not react with concentrated sulfuric acid. The compound could be (a) Alkane (b) Cycloalkane (c) Alkene (d) Cycloalkene
Last Answer : Cycloalkane
Description : The appearance of a silver mirror in Tollens' test indicates the presence of : (a) an aldehyde (b) a ketone (c) an alcohol (d) an alkene
Last Answer : an aldehyde
Description : The mechanism of dehydration of an alcohol to give an alkene involves formation of : (a) Carbonium ions (b) Carbanions (c) Free radicals (d) Carbenes
Last Answer : Carbonium ions
Description : Which of the alkyl chlorides listed below undergoes dehydrohalogenation in the presence of a strong base to give 2-pentene as the only alkene product? (a) 1-chloropentane (b) 2-chloropentane (c) 3-chloropentane (d) 1-chloro-2-methylbutane
Last Answer : 3-chloropentane
Description : The hydroboration-oxidation reaction can be characterized as the _________ to an alkene. (a) anti-Markovnikov syn addition of water (b) anti-Markovnikov anti addition of water (c) Markovnikov syn addition of water (d) Markovnikov anti addition of water
Last Answer : anti-Markovnikov syn addition of water
Description : Which of the following is not a possible reaction of a carbocation? (a) addition of a nucleophile (b) rearrangement to a more stable carbocation (c) addition of a proton to form an alkane (d) loss of a β-hydrogen to form an alkene
Last Answer : addition of a proton to form an alkane
Description : Which one of the following is not a metal catalyst for the hydrogenation of an alkene? (a) Pd (b) Pt (c) Na (d) Ni
Last Answer : Na
Description : The higher reactivity of an alkene or alkyne, as compared to an alkane, is due to (a) sigma bonds (b) pi bonds (c) hydrogen bonds (d) None of these
Last Answer : pi bonds
Description : Which of the following molecular formulas will correspond to an alkene with two double bonds? (a) C4H10 (b) C5H12 (c) C6H10 (d) C8H16
Last Answer : C6H10
Description : Which of the following is the most stable alkene? (a) trans-3-hexene (b) cis-3-hexene (c) 1-hexene (d) (Z)-3-hexene
Last Answer : trans-3-hexene
Description : Combustion of an alkene with sufficient oxygen will produce (a) carbon dioxide and water (b) carbon monoxide and water (c) only carbon dioxide (d) only carbon monoxide
Last Answer : carbon dioxide and water
Description : A compound reacts with steam in the presence of concentrated H2SO4 to give isopropyl alcohol. The compound could be (a) Alkane (b) Alkyne (c) Alkene (d) Allene
Last Answer : Alkene
Description : The disappearance of the purple color of KMnO4 in its reaction with alkene is known as (a) Markovnikov test (b) Grignard test (c) Baeyer test (d) Wurtz test
Last Answer : Baeyer test
Description : The carbon atoms involved in the double bond of an alkene are (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these
Last Answer : sp2 hybridized
Description : What is the name given to a compound containing only carbons and hydrogens and having the maximum number of hydrogens in the molecule? (a) alkene (b) unsaturated hydrocarbon (c) saturated hydrocarbon (d) alkyne
Last Answer : saturated hydrocarbon
Description : A compound of formula C3H8 does not react with bromine in CCl4 in the dark. The compound could be (a) Alkane (b) Cycloalkane (c) Alkene (d) Cycloalkene
Last Answer : Alkane
Description : Quartenry ammonium salt after Hofmann elimination gives--- a. Alcohol b. Alkene c. Alkyne d. Ammmonia
Last Answer : b. Alkene
Description : Which of the following organic compounds is known as a saturated chain hydrocarbon ? w) an aromatic compound x) an alkene y) an alkyne z) an alkane
Last Answer : ANSWER: Z -- AN ALKANE
Description : What is the general formula for the alkene series?
Last Answer : ANSWER: CnH2n
Description : Which of the following phrases is NOT appropriate for a description of benzene? w) characteristic reactivity of an alkene x) volatile liquid y) aromatic hydrocarbon z) resonance hybridization
Last Answer : ANSWER: W -- CHARACTERISTIC REACTIVITY OF AN ALKENE