Give the IUPAC (pron: I - U - PAY) name of the shortest of the alcohols.

Give the IUPAC (pron: I - U - PAY) name of the shortest of the alcohols.
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ANSWER: METHANOL
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Give the IUPAC (pron: I - U - PAY) name for the straight chain, saturated organic acid containing 10 carbons in an unbranched structure.

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Description : Give IUPAC name of the ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry

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Last Answer : 2-Propanol

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Last Answer : (a) K3[Al(C2O4)3] (b) [Co(Cl)2(en)2]+

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Last Answer : (i) Na[Au(CN)2] (ii) [Pt(NH3)4 Cl(NO2)] (SO4)

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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

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

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

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Last Answer : i) [CO(NH3)5Cl]2+ IUPAC name : Pentaammine chlorido cobalt (III) ion (ii) Formula of the complex potassium tetrachloridonickelate (II) K2[NiCl4]

(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

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+

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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.

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

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

Write IUPAC name of the complex: -Chemistry

Description : Write IUPAC name of the complex: -Chemistry

Last Answer : Dichloridobis ethylenediamine cobalt (III) ion.

Write IUPAC name of the complex: [CoCl2(en)2]+ -Chemistry

Description : Write IUPAC name of the complex: [CoCl2(en)2]+ -Chemistry

Last Answer : CoCl2(en)2]+: Dichloridobis(ethylenediamine)Cobalt(III)ion.

Write the IUPAC name of the following coordination compound [NiCl4]2-. -Chemistry

Description : Write the IUPAC name of the following coordination compound [NiCl4]2-. -Chemistry

Last Answer : Tetrachloridonickelate (II) ion.

Write the IUPAC name of the following complex : [CO(NH3)6]3+ -Chemistry

Description : Write the IUPAC name of the following complex : [CO(NH3)6]3+ -Chemistry

Last Answer : Hexaamminecobalt (III) ion.

What is the IUPAC name of the complex [Ni(NH3)6]Cl2? -Chemistry

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.

What is IUPAC ?

Description : What is IUPAC ?

Last Answer : International Union of Pure and Applied Chemistry is the full form of IUPAC . This body formulates a useful rule for naming organic compounds.

(3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is an odorless, colourless, syrupy, sweettasting liquid. Ethylene glycol is toxic, and ingestion can result in death. Due to its low freezing point ethylene glycol resists freezing. A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Description : (3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is ... A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Last Answer : Rust is - (1) A mixture of Fe₂O₃ and Fe(OH) ₂ (2) A mixture of FeO and Fe(OH)₂ (3) FeO only (4) A mixture of Fe₂O₃, 3H₂O and FeO

Write the metamer of diethyl ether. What is its IUPAC name?

Description : Write the metamer of diethyl ether. What is its IUPAC name?

Last Answer : Ans.1-methoxypropane, CH3OCH2CH2CH3 or 2-methoxypropane,CH3OCH(CH3)2

Write the IUPAC name for: (CH3)2CHCH(OH)CH2C(CH3)3,identify the functional group and type of compound.

Description : Write the IUPAC name for: (CH3)2CHCH(OH)CH2C(CH3)3,identify the functional group and type of compound.

Last Answer : Ans. 2,5,5-trimethylhexan-3-ol, alcohol, secondary alcohol

Write the IUPAC of molecule with the formula C3 H8?

Description : Write the IUPAC of molecule with the formula C3 H8?

Last Answer : Ans. propane

Write the IUPAC name of [CO (NH3 ) 4 B12] 2 [ZnCl4 ].

Description : Write the IUPAC name of [CO (NH3 ) 4 B12] 2 [ZnCl4 ].

Last Answer : Ans. Tetraamminedibromocobalt (III) tetrachlorozincate (II) 

What is the IUPAC name for isoprene? (a) 1,3-pentadiene (b) 2,4-pentadiene (c) 2,3-dimethyl-1, 3-butadiene (d) 2-methyl-1,3-butadiene

Description : What is the IUPAC name for isoprene? (a) 1,3-pentadiene (b) 2,4-pentadiene (c) 2,3-dimethyl-1, 3-butadiene (d) 2-methyl-1,3-butadiene

Last Answer : 2-methyl-1,3-butadiene

Which of the following statements is false about glyceraldehyde? (a) Its IUPAC name is 1,2-dihydroxypropanal (b) It is isomeric with 1,3-dihydroxypropanone (c) It is optically active (d) It shows mutarotation

Description : Which of the following statements is false about glyceraldehyde? (a) Its IUPAC name is 1,2-dihydroxypropanal (b) It is isomeric with 1,3-dihydroxypropanone (c) It is optically active (d) It shows mutarotation

Last Answer : It shows mutarotation

What is the IUPAC name for the following structure? CH3CH(CH3)CH2CH(OH)CH3 (a) 4-methyl-2-pentanol (b) 2-methyl-2-hexanol (c) 2-methyl-4-pentanol (d) 2-methyl-3-pentanol

Description : What is the IUPAC name for the following structure? CH3CH(CH3)CH2CH(OH)CH3 (a) 4-methyl-2-pentanol (b) 2-methyl-2-hexanol (c) 2-methyl-4-pentanol (d) 2-methyl-3-pentanol

Last Answer : 4-methyl-2-pentanol

Which of the following is a correct name according to the IUPAC rules? (a) 2-Methylcyclohexane (b) 2-Ethyl-2-methylpentane (c) 3,4-Dimethylpentane (d) 3-Ethyl-2-methylpentane

Description : Which of the following is a correct name according to the IUPAC rules? (a) 2-Methylcyclohexane (b) 2-Ethyl-2-methylpentane (c) 3,4-Dimethylpentane (d) 3-Ethyl-2-methylpentane

Last Answer : 3-Ethyl-2-methylpentane

Give the IUPAC name of the following compounds:

Description : Give the IUPAC name of the following compounds:

Last Answer : a) HCOOH – Methanoic acid b) CH 3 COOH – Ethanoic acid

Why are amines always less acidic than comparable alcohols?

Description : Why are amines always less acidic than comparable alcohols?

Last Answer : Ans.--- Amines are less acidic than alcohols because of oxygen higher electronegative & smaller size. Therefore O-H breakes easily than N-H bond. 

Why is it that secondary alcohols can only undergo a single oxidation step in contrast to primary alcohols?

Description : Why is it that secondary alcohols can only undergo a single oxidation step in contrast to primary alcohols?

Last Answer : 1. Once the oxidation has reached the ketone stage, (primary alcohols on oxidation yield aldehyde where as secondary alcohols on oxidation yield a ketone), it is impossible to put more oxygen atoms on the relevant carbon atom without rupturing the backbone of the molecule.

Alcohols acts as weak bases. Explain.

Description : Alcohols acts as weak bases. Explain.

Last Answer : The oxygen atom of the hydroxyl group has two lone pairs of electrons. Therefore alcohols accept a proton from strong mineral acid to form oxonium ions. Hence act as weak bases.

Phenols do not undergo substitution of the — OH group like alcohols. Explain.

Description : Phenols do not undergo substitution of the — OH group like alcohols. Explain.

Last Answer : The C — O bond in phenols has some double bond character due to resonance and hence cannot be easily cleaved by a nucleophile. In contrast, the C — O bond in alcohols is a pure single bond and hence can be easily cleaved by a nucleo phile.

Alcohols are easily protonated than phenols. Justify.

Description : Alcohols are easily protonated than phenols. Justify.

Last Answer : Ans. In phenols lone pair of electrons on the oxygen atom are delocalised over the benzene ring due to resonance and hence are not easily available for protonation. In contrast in alcohols, ... oxygen atom are localized due to absence of resonance and hence are easily available for protonation. 

Phenol has smaller dipole moment than methanol. (OR) Why are dipole moments of phenols smaller than dipole moments of alcohols ?

Description : Phenol has smaller dipole moment than methanol. (OR) Why are dipole moments of phenols smaller than dipole moments of alcohols ?

Last Answer : Due to electron-withdrawing effect of the benzene ring, the C — O bond in phenol is less polar but in case of methanol due to electron-donating effect of — CH3 group, C — O bond is more polar.

Phenols can be easily distinguished from alcohols because (a) phenols are soluble in NaOH, but alcohols are not (b) alcohols are soluble in NaOH, but phenols are not (c) phenols are soluble in NaHCO3, but alcohols are not (d) alcohols are soluble in NaHCO3, but phenols are not

Description : Phenols can be easily distinguished from alcohols because (a) phenols are soluble in NaOH, but alcohols are not (b) alcohols are soluble in NaOH, but phenols are not (c) phenols are soluble in NaHCO3, but alcohols are not (d) alcohols are soluble in NaHCO3, but phenols are not

Last Answer : phenols are soluble in NaOH, but alcohols are not

Which group forms the strongest H-bonds to water molecules? (a) Alcohols (b) Ethers (c) Phenols (d) All equally strong

Description : Which group forms the strongest H-bonds to water molecules? (a) Alcohols (b) Ethers (c) Phenols (d) All equally strong

Last Answer : Phenols

Aliphatic primary amines react with cold nitrous acid to form (a) Alcohols (b) Diazonium salts (c) Nitriles (d) Nitroalkanes

Description : Aliphatic primary amines react with cold nitrous acid to form (a) Alcohols (b) Diazonium salts (c) Nitriles (d) Nitroalkanes

Last Answer : Alcohols

Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Description : Esters can be formed by nucleophilic substitution reactions of : (a) carboxylic acids and alcohols ; acid-catalyzed (b) acid chlorides and alcohols (c) both of the above (d) neither of the above

Last Answer : both of the above

. Hunsdiecker reaction is used for the preparation of (a) Alkyl chlorides and bromides (b) Alkyl nitrates and nitrites (c) Ketenes (d) Alcohols

Description : . Hunsdiecker reaction is used for the preparation of (a) Alkyl chlorides and bromides (b) Alkyl nitrates and nitrites (c) Ketenes (d) Alcohols

Last Answer : Alkyl chlorides and bromides

The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl oxygen (c) the acidity of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Description : The greater acidity of carboxylic acids compared to alcohols arises primarily from : (a) the electron-donating effect of the hydroxyl group (b) the electron-withdrawing effect of the carboxyl ... of α-hydrogens of carboxylic acids (d) the resonance stability associated with the carboxylate ion

Last Answer : the resonance stability associated with the carboxylate ion

Primary alcohols have boiling points that are _____________ the corresponding aldehydes. (a) Lower than (b) Higher than (c) About the same

Description : Primary alcohols have boiling points that are _____________ the corresponding aldehydes. (a) Lower than (b) Higher than (c) About the same

Last Answer : Higher than

Thiols are alcohol analogs in which the oxygen has been replaced by sulfur (e.g., CH3SH). Given the fact that the S–H bond is less polar than the O–H bond, which of the following statements comparing thiols and alcohols is correct? (a) Hydrogen bonding forces are weaker in thiols. (b) Hydrogen bonding forces are stronger in thiols. (c) Hydrogen bonding forces would be the same. (d) No comparison can be made without additional information

Description : Thiols are alcohol analogs in which the oxygen has been replaced by sulfur (e.g., CH3SH). Given the fact that the S-H bond is less polar than the O-H bond, which of the following ... (c) Hydrogen bonding forces would be the same. (d) No comparison can be made without additional information

Last Answer : Hydrogen bonding forces are weaker in thiols.

Which of the following reagents can be used to oxidize 1° alcohols to aldehydes? (a) KMnO4 (b) MnO2 (c) K2Cr2O7 (d) PCC

Description : Which of the following reagents can be used to oxidize 1° alcohols to aldehydes? (a) KMnO4 (b) MnO2 (c) K2Cr2O7 (d) PCC

Last Answer : PCC

The acid-catalyzed dehydration mechanism for alcohols is best described as a(n) : (a) E1 . (b) E2 . (c) SN1 (d) SN2

Description : The acid-catalyzed dehydration mechanism for alcohols is best described as a(n) : (a) E1 . (b) E2 . (c) SN1 (d) SN2

Last Answer : E1 .