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 : 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 : 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 : Which of the following compounds will react most readily with concentrated sulfuric acid? (a) Ethane (b) Cyclohexane (c) Propane (d) Cyclohexene
Last Answer : Cyclohexene
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 : 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 : 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 : 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 : 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 : Why is it not safe to add water directly to concentrated sulfuric acid ?
Last Answer : Sulfuric acid is a chemical compound. Whose chemical signal is H₂SO₄ . Pouring water with acid is not safe in case of concentrated H₂SO₄ acid dilution. This is because the concentrated H₂SO₄ acid is a ... dilute the acid, the acid is slowly poured into the water without adding water to the acid.
Description : Benzaldehyde reacts with a mixture of concentrated sulfuric acid and nitric acid to give (a) p-Nitrobenzaldehyde (b) o-Nitrobenzaldehyde (c) p-Nitrobenzoic acid (d) m-Nitrobenzaldehyde
Last Answer : m-Nitrobenzaldehyde
Description : By which of the following methods can CH3CONH2 be converted to CH3CN? (a) Oxidize with Na2Cr2O7/H+ (b) Heat with concentrated sulfuric acid (c) Heat to 200°C (d) Warm with P2O5
Last Answer : Warm with P2O5
Description : When one heats concentrated sulfuric acid, one molecule of water is eliminated for every two molecules of sulfuric acid. What substance will result from this reaction?
Last Answer : ANSWER: PYROSULFURIC ACID or DISULFURIC ACID
Description : The action of concentrated sulfuric acid on sugar best described as: w) catalysis x) oxidation y) reduction z) dehydration
Last Answer : ANSWER: Z -- DEHYDRATION
Description : Aqua regia is: w) concentrated nitric acid x) a mixture of three parts of concentrated hydrochloric acid and one part concentrated nitric acid y) concentrated hydrochloric acid z) a mixture of sulfuric acid and hydrochloric acid
Last Answer : ANSWER: X -- A MIXTURE OF THREE PARTS OF CONCENTRATED HYDROCHLORIC ACID AND ONE PART CONCENTRATED NITRIC ACID
Description : Which molecular formula indicates 2-methylpentane? (a) C5H12 (b) C6H14 (c) C5H10 (d) C6H12
Last Answer : C6H14
Description : What hazard symbol would you see on concentrated sulfuric acid?
Last Answer : Need answer
Description : Which of the problems listed will occur if a lead-acid battery is allowed to remain in a discharged condition for a long period of time? A. The battery may be unable to accept a full charge ... . C. The concentrated sulfuric acid will attack the lead peroxide plates. D. The separators will harden.
Last Answer : Answer: A
Description : Which compound is responsible for the rotten egg smell? w) sulfuric acid x) putrescine y) hydrogen sulfide z) sulfur dioxide
Last Answer : ANSWER: Y -- HYDROGEN SULFIDE (NOTE: putrescine is a real compounz)
Last Answer : Sulfur reacts with water to produce sulfuric acid
Description : How many millilitres of 3.0 molar of sulfuric acid are required to react with 0.900 grams of copper?
Last Answer : The volume of sulfuric acid is 2,3 mL.
Description : What is the general formula for the alkene series?
Last Answer : ANSWER: CnH2n
Description : Which of the following agents is used in order to make benzene react with concentrated nitric acid to give nitrobenzene? (a) Concentrated H2SO4 (b) FeCl3 catalyst (c) Lindlar's catalyst (d) Ultraviolet light
Last Answer : Concentrated H2SO4
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 : The next higher homologue of C6H14 is - (1) C6H14 (2) C7H12 (3) C6H12 (4) C7H16
Last Answer : (4) C7H16 Explanation: In chemistry, a homologous series is a series of compounds with a similar general formula, possessing similar chemical properties due to the presence of the same functional group. ... CH2 group is called Methylene Group. So the higher homologue of Hexane is Heptane (C7H16).
Description : A hydrocarbon, C6H12, on ozonolysis gives only one product which does not give silver mirror with Tollens' reagent. The hydrocarbon is (a) 2,3-Dimethyl-2-butene (b) 2-Hexene (c) 2-Methyl-2-pentene (d) 3-Hexene
Last Answer : 2,3-Dimethyl-2-butene
Description : Kolbe's electrolysis of sodium butyrate gives (a) C8H16 (b) C6H14 (c) C8H18 (d) C6H12
Description : The next higher homologue of C6H14 is (1) C7H14 (2) C7H12 (3) C6H12 (4) C7H16
Last Answer : C7H16
Description : What is the formula for the anhydride of sulfuric aci
Last Answer : ANSWER: SO3
Description : The maximum number of isomers for an alkene with molecular formula C4H8 is?
Last Answer : 4
Description : The general formula of alkene
Last Answer : is C n H 2n .
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 : Ethers react with cold concentrated H2SO4 to form (a) Oxonium salts (b) Alkenes (c) Alkoxides (d) Zwitterions
Last Answer : Oxonium salts
Description : Ethyl alcohol can react with concentrated H2SO4 to give (a) Ethylene (b) Diethyl ether (c) Ethyl hydrogen sulfate (d) All of these
Last Answer : All of these
Description : Aromatic carbonyl compound having molecular formula `C_(8)H_(8)O` react with `NH_(2)OH` how many oximes can be formed
Last Answer : Aromatic carbonyl compound having molecular formula `C_(8)H_(8)O` react with `NH_(2)OH` how many oximes can be formed A. 8 B. 10 C. 12 D. 6
Description : What is the balanced equation for the incomplete combustion of hexene C6H12?
Last Answer : The chemical equation is:2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
Description : With hydrocarbons, is chlorine the ONLY atom powerful enough to remove a hydrogen atom from an alkane?
Last Answer : (Disclaimer: I had organic chemistry 10 years ago, so you may want to back this up with some googling) Flourine reacts with alkanes, but it is so reactive it is unpredictable; you don't know ... . It seems like you can get the more powerful acids to react with alkanes under the right conditions.
Description : What is the name of the simplest alkane ?
Last Answer : The simplest alkene is methane.
Description : Which of the following produces highest amount of energy upon oxidation? (1) Protein (2) Fat (3) Glucose (4) An alkane
Last Answer : (2) Fat Explanation: Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and ... while "fats" is usually used to refer to fats that are solids at normal room temperature.
Description : What effect does branching of an alkane chain has on its boiling point?
Last Answer : Ans. As branching increases, the surface area of the molecule decreases which results in a small area of contact. As a result, the Van der Waals force also decreases which can be overcome at ... lower temperature. Hence, the boiling point of an alkane chain decreases with an increase in branching.
Description : (a) What effect the branching of an alkane has on its melting point? (L-III) (b) Which of the following has highest boiling point?(L-III) (1) 2-methyl pentane. (2) 2, 3-diethyl butane. (3) 2, 2- dimethyl butane.
Last Answer : Ans.(a) In general conception, as the branching increases packing of the molecules in the crystals becomes less close and have melting point decreases accordingly. (b) As the branching increases, ... attraction decreases and hence the boiling point decreases. So, 2-methyl pentane has highest B.pt.
Last Answer : Ans. As the branching increases, the surface area of an alkane approaches that of a sphere. Since a sphere has minimum surface area, therefore, Vander Waal forces of attraction are minimum and hence the boiling point of the alkane decreases with branching.
Description : Chlorination of an alkane as compared to bromination proceeds (a) at a slower rate (b) at a faster rate (c) with equal rates (d) with equal or different rate depending upon the source of alkane
Last Answer : at a faster rate
Description : The six carbon cyclic alkane is called what?
Last Answer : ANSWER: CYCLOHEXANE
Description : What is the I-U-P-A-C (pron: eye-you pack) name for a cyclic alkane containing four carbons?
Last Answer : ANSWER: CYCLOBUTANE
Description : How many hydrogens are there in the straight chain alkane that has three carbon atoms?
Last Answer : ANSWER: EIGHT
Description : What is the name of the alkane that is composed of a chain of five carbon atoms?
Last Answer : ANSWER: PENTANE
Last Answer : Fat