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
Description : Which of the following compounds is assigned the Octane Number of 100 : (a) n-Heptane (b) 2,3,3-Trimethylpentane (c) n-Octane (d) 2,2,4-Trimethylpentane
Last Answer : 2,2,4-Trimethylpentane
Description : Which of the following compounds is assigned the Octane Number of zero : (a) n-Octane (b) 2,3,3-Trimethylpentane (c) n-Heptane (d) 2,2,4-Trimethylpentane
Last Answer : n-Heptane
Description : The six carbon cyclic alkane is called what?
Last Answer : ANSWER: CYCLOHEXANE
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 : 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 is the name of the simplest alkane ?
Last Answer : The simplest alkene is methane.
Description : Which of the following alkane is synthesised from single alkyl halide by wurtz reaction:-
Last Answer : Which of the following alkane is synthesised from single alkyl halide by wurtz reaction:- A. B. C. D.
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 : 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 : 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 : 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 : 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 : 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 : 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 I-U-P-A-C (pron: eye-you pack) name for a cyclic alkane containing four carbons?
Last Answer : ANSWER: CYCLOBUTANE
Last Answer : Fat
Description : Write the name and structure of a saturated compound in which the carbon atoms are shaped in a ring. Also write the number of bonds present in that compound? -SST 10th
Last Answer : It’s cyclo alkane, it can be any cyclo alkane like cyclo pentane or cyclo hexane.
Description : What weight of Na will contain the same number of atoms as are present in 2.4 gm of carbon? -Chemistry 9th
Last Answer : 1 mole of Carbon has weight 12g. So 0.2 mole of Carbon will have weight 2.4 g. Now, 1 mole of Carbon contains 6.022 10^23 atoms So 0.2 moles of Carbon contains 1.2044 10^23 atoms. So we need to find the weight ... of Na. 1 mole of Na = 23 g So 0.2 mole of Na = 4.6 grams So, answer is 4.6 grams.
Description : How many C-13 atoms are present on average in a 1.8000 and times104-atom sample of carbon?
Last Answer : Feel Free to Answer
Description : How many number of carbon atoms are present in 0.062 mol acetic acid HC2H3O2?
Last Answer : The number of carbon atoms which are present in 0,062 mol acetic acid HC2H3O2 is 0,747.10e23.
Description : The number of carbon atoms in decanoic acid present in butter: (A) 6 (B) 8 (C) 10 (D) 12
Last Answer : Answer : C
Description : Diamond does not conduct electricity, because - (1) It's structure is very compact (2) It is of crystalline nature (3) There are only carbon atoms present in it (4) No free electrons are present in it
Last Answer : (4) No free electrons are present in it Explanation: Diamond has a giant molecular structure. Each carbon atom is covalently bonded to four other car-bon atoms. There are no ... conduct electricity. Except for most blue diamonds, which are semiconductors, diamonds are good electrical insulators.
Description : In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the (A) Hexamethylene diamine and the ring (B) Hexamethylene diamine and the adipic acid (C) Adipic acid and the ring (D) None of these
Last Answer : (B) Hexamethylene diamine and the adipic acid
Description : How many carbon atoms are present in oleic acid?
Last Answer : 18 carbon, with one double bond.
Description : In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the (A) Diamine and the ring (B) Dibasic acid and the ring (C) Diamine and the dibasic acid (D) None of these
Last Answer : (C) Diamine and the dibasic acid
Description : Diamond does not conduct electricity, because (1) It’s structure is very compact (2) It is of crystalline nature (3) There are only carbon atoms present in it (4) No free electrons are present in it
Last Answer : No free electrons are present in it
Description : Using IUPAC norms write the formulae for the following: (a) Potassium trioxalatoaluminate (III) (b) Dichloridobis(ethane-l, 2-diamine) cobalt (III) -Chemistry
Last Answer : (a) K3[Al(C2O4)3] (b) [Co(Cl)2(en)2]+
Description : Using IUPAC norms write the formulae for the following: (a) Tris(ethane-1,2-diamine) chromium (III) chloride (b) Potassium tetrahydroxozincate(II) -Chemistry
Last Answer : a) [Cr(en)3] Cl3 (b) K2[Zn(OH)4]
Description : Using IUPAC norms write the formulae for the following: (i) Sodium dicyanidoaurate (I) (it) Tetraamminechloridonitrito-N-platinum (IV) sulphate -Chemistry
Last Answer : (i) Na[Au(CN)2] (ii) [Pt(NH3)4 Cl(NO2)] (SO4)
Description : When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex (ii) IUPAC name of the complex -Chemistry
Last Answer : i) Complex so formed is: CoCl3.6NH3 + AgNO3 → [Co(NH3)6]Cl3 (ii) IUPAC name of complex is: Hexaamminecobalt (III) chloride
Description : When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex. (ii) IUPAC name of the complex. -Chemistry
Last Answer : (i) The complex formed on mixing a coordination compound CrCl3.6H2O with AgNO3 is as follows CrCl3.6H2O + AgNO3 → [Cr(H2O5)Cl]Cl2. H2O (ii) Pentaaquachloridochromium (III) chloride monohydrate
Description : (i) Write down the IUPAC name of the following complex : [CO(NH3)5Cl]2+ (ii) Write the formula for the following complex : Potassium tetrachloridonickelate (II) -Chemistry
Last Answer : i) [CO(NH3)5Cl]2+ IUPAC name : Pentaammine chlorido cobalt (III) ion (ii) Formula of the complex potassium tetrachloridonickelate (II) K2[NiCl4]
Description : (i) Write down the IUPAC name of the following complex : [Cr(NH3)2CI3(en)]Cl (en = ethylenediamine) (ii) Write the formula for the following complex : Pentaamminenitrito-o-Cobalt (III) -Chemistry
Last Answer : (I) [Cr(NH3)2Cl3(en)]Cl IUPAC name : Diammine dichlorido ethylenediamine chromium (III) chloride. (ii) [Co(NH3)5(ONO)]2+
Description : Write the IUPAC name of the complex [Cr(NH3)4Cl2]+. What type of isomerism does it exhibit? -Chemistry
Last Answer : IUPAC name : Tetraamine dichlorido chromium (III) ion. It exhibits geometrical isomerism.
Description : Name the following coordination compounds according to IUPAC system of nomenclature :(i) [Co(NH3)4 (H2O)Cl]Cl2 (ii) [CrCl2(en)2]Cl, (en = ethane – 1, 2 – diamine) -Chemistry
Last Answer : (i) [CO(NH3)4 (H2O)Cl]Cl2 Tetraammine aquachlorido cobalt (III) chloride (ii) [CrCl2(en)2]Cl Dichlorobis (ethane-1, 2-diamine) chromium (III) chloride
Description : Write IUPAC name of the complex: -Chemistry
Last Answer : Dichloridobis ethylenediamine cobalt (III) ion.
Description : Write IUPAC name of the complex: [CoCl2(en)2]+ -Chemistry
Last Answer : CoCl2(en)2]+: Dichloridobis(ethylenediamine)Cobalt(III)ion.
Description : Write the IUPAC name of the following coordination compound [NiCl4]2-. -Chemistry
Last Answer : Tetrachloridonickelate (II) ion.
Description : Write the IUPAC name of the following complex : [CO(NH3)6]3+ -Chemistry
Last Answer : Hexaamminecobalt (III) ion.
Description : What is the IUPAC name of the complex [Ni(NH3)6]Cl2? -Chemistry
Last Answer : [Ni(NH3)6]Cl2 IUPAC name : Hexaamminenickel (II) chloride.
Description : Give IUPAC name of the ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry
Last Answer : IUPAC name : Triammine chlorido nickel (II) nitrate [Ni(NH3)3NO3]Cl
Description : Give IUPAC name of ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry
Last Answer : IUPAC name : Triammine nitrato nickel (III) chloride
Description : What is the IUPAC name of the product obtained when 2-methyl-1-cyclopentanol is dehydrated in the presence of an acid catalyst and heat?
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