An aqueous solution of glycine is neutral because of the formation of :
(a) Carbanion
(b) Zwitterion
(c) Carbonium ions
(d) Free radicals

1 Answer

Answer :

Zwitterion

Related questions

Description : Homolytic fission of covalent bond between carbon atoms will produce : (a) Two carbonium ions (b) Two molecules (c) Free radicals (d) Carbonium ion and carbanion

Last Answer : Free radicals

Description : Chlorine free radicals react with methane by : (a) donating their free-radical electron to methane to form chloromethane. (b) abstracting a hydrogen atom from methane, and producing ... produce chloromethane. (d) forming a carbonium ion intermediate that rapidly dissociates to form chloromethane

Last Answer : abstracting a hydrogen atom from methane, and producing HCl and a methyl radical

Description : The mechanism of dehydration of an alcohol to give an ether involves formation of : (a) Carbonium ions (b) Carbanions (c) Free radicals (d) Carbenes

Last Answer : Carbonium ions

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 : Homolytic fission of C–C bond leads to the formation of : (a) Free radicals (b) Carbonium ions (c) Carbanions (d) None of these

Last Answer : Free radicals

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 : The order of stability of carbonium ions is (a) tertiary > secondary > primary (b) secondary > tertiary > primary (c) primary > secondary > tertiary (d) primary > tertiary > secondary

Last Answer : tertiary > secondary > primary

Description : When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases

Last Answer : ANSWER: X -- FREE RADICALS

Description : A zwitterion is (a) an ion that is positively charged in solution (b) an ion that is negatively charged in solution (c) a compound that can ionize both as a base and an acid. (d) a carbohydrate with an electrical charge.

Last Answer : a compound that can ionize both as a base and an acid

Description : Which among the following is false about acids? (1) They give H+ ions in aqueous solution (2) Most acids contain hydrogen (3) They turn blue litmus red (4) They are bad conductor of electricity in aqueous solution

Last Answer : (4) They are bad conductor of electricity in aqueous solution Explanation: Acids are good conductors of electric current in aqueous solution. When acids come in contact with water, they liberate OH ions, resulting in conduction of electricity.

Description : How could we prevent H+ ions to be discharged first than Na+ during electrolysis of aqueous solution of NaCl?

Last Answer : Ans: This could be prevented by using mercury cathode during this kind of electrolysis, because H+ ions need high voltage to be discharged at mercury cathode. In this way sodium got discharged at cathode despite H+ ions.

Description : Ions moving towards the cathode during electrolysis of an aqueous solution of Ca(OH)2 are (a) OH (b) H+ (c) Ca2+ (d) 02

Last Answer : Ans:(a)

Description : Pick out the wrong statement. (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature (B) Normally, the gases which are easily liquefied are more soluble ... (D) At constant pressure, solubility of a gas in a liquid increases with rise in temperature

Last Answer : (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature

Description : Hydrogen and chlorine react vigorously in the presence of light (explosively) due to the formation of (a) Hydrogen-free radicals (b) Chlorine-free radicals (c) Hydrogen chloride molecule (d) Both hydrogen- and chlorine-free radicals

Last Answer : Ans:(b)

Description : Which is/are correctly linked here? `{:(,"List I",,"List II"),((a),E_(1)Cb,(a),"Carbanion formation"),((b),E_(2),(b),"Stereo specific"),((c),S_(N^(1))

Last Answer : Which is/are correctly linked here? `{:(,"List I",,"List II"),((a),E_(1)Cb,(a),"Carbanion formation" ... "),((d),E_(1),(d),"Carbocation formation"):}`

Description : Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta ... the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Last Answer : the more stable resonance hybrid occurs with meta attachment of the electrophile.

Description : An aqueous solution of glucose behaves as an aldehyde because __________. (a) it is hydrolyzed by water to the free aldehyde (b) it is a ketone, but is in equilibrium with the aldehyde form ... aldehyde (d) its cyclic hemiacetal, the predominant form, is in equilibrium with the free aldehyde form

Last Answer : its cyclic hemiacetal, the predominant form, is in equilibrium with the free aldehyde form

Description : What is the name given for a species that contains a positively charged carbon atom? (a) carbanion (b) carbocation (c) methyl radical (d) free radical

Last Answer : carbanion

Description : The amino acid exist as Zwitter ions when they are in (A) solid state (B) acidic solution (C) alkaline solution (D) neutral solution

Last Answer : Answer : D

Description : At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic

Last Answer : Answer : A

Description : In a neutral solution (A) H+ions are absent (B) OH ions are absent (C) Both H+ and OH ions are present in very small but equal concentration (D) None of these

Last Answer : (C) Both H+ and OH ions are present in very small but equal concentration

Description : At neutral pH, a mixture of amino acids in solution would be predominantly: (A) Dipolar ions (B) Nonpolar molecules (C) Positive and monovalent (D) Hydrophobic

Last Answer : (A) Dipolar ions

Description : A zwitterion has which of the following properties (a) no net charge (b) a high melting point (c) soluble in water (d) all of these

Last Answer : all of these

Description : The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Last Answer : ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS

Description : Antioxidants help a person maintain good health because they (a) prevent the vitamins deficiency. (b) prevent excessive oxidation of glucose and other carbohydrates. (c) neutralise the free radicals ... metabolism. (d) activate certain genes in the body cells which help delay the ageing process.

Last Answer : Ans:(c)

Description : Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as (a) neutral ions (b) negatively charged ions (c) positively charged ions (d) both positively and negatively charged but disproportionate mixture.

Last Answer : (b) negatively charged ions

Description : Lipids are insoluble in water because lipid molecules are (a) hydrophilic (b) hydrophobic (c) neutral (d) zwitter ions.

Last Answer : (b) hydrophobic

Description : Characteristic reactions of aromatic hydrocarbons are initiated by (a) Electrophiles (b) Nucleophiles (c) Free radicals (d) Uncharged molecules

Last Answer : Electrophiles

Description : In the chlorination of alkanes, the first step in which chlorine free radicals are produced is called : (a) initiation (b) activation (c) propagation (d) deactivation

Last Answer : initiation

Description : What is Carbonium Ion ?

Last Answer : Organic ions with positively charged carbon atoms are called 'carbonium' ions.

Description : Why does a H+ ion attacking a carbon-carbon double bond add to the carbon with the least number of substituents? (a) the reaction is resonance stabilized. (b) the hybrid geometry favors this ... tends to attack stable centers of negative charge. (d) a more stable carbonium ion is generated.

Last Answer : a more stable carbonium ion is generated.

Description : Which statement is correct? (a) Energy is released when a bond breaks. (b) A sigma bond results from attraction of protons and electrons. (c) Energy is released when a bond forms. (d) A carbanion is positively charged

Last Answer : Energy is released when a bond forms

Description : A Zwitterion is (A) Positive ion (B) Negative ion (C) Both (A) and (C) (D) None of these

Last Answer : Answer : C

Description : At a pH below the isoelectric point, an amino acid exists as (A) Cation (B) Anion (C) Zwitterion (D) Undissociated molecule

Last Answer : Answer : A

Description : At isoelectric pH, an amino acid exists as (A) Anion (B) Cation (C) Zwitterion (D) None of these

Last Answer : Answer : C

Description : Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions?

Last Answer : Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions? A. `Li^(+)` B. `Na^(+)` C. `Rb^(+)` D. `Cs^(+)`

Description : What statement about Arrhenius acids is FALSETheir aqueous solutions are electrolytesTheir water solutions are called aqueous acids They increase the concentration of hydroxide ions in aqueous solutionThey are molecular compounds with hydrogen ions?

Last Answer : The answer is: They increase the concentration of hydroxide ions in aqueous solution.

Description : The number of ions in 1 M aqueous s 0lution of Ca3(PO4)2 will be (a) 5 (b) 11 (c) 13 (d) 2

Last Answer : Ans:(a)

Description : (a) Show on a diagram the transfer of electrons between the atoms in the formation of MgO. Write symbols of cation and anion present in MgO. (b) Name the solvent in which ionic compounds are generally soluble. (c) Why are aqueous solutions of ionic compounds able to conduct electricity? -Chemistry

Last Answer : (b) Ionic compounds are soluble in water. (c) It is because aqueous solutions consist of ions which can move freely in them and carry current.

Description : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a characteristic colour with neutral `FeCl_(3)`

Last Answer : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a ... colour with `FeCl_(3)`? A. B. C. D.

Description : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a characteristic colour with neutral `FeCl_(3)`

Last Answer : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a ... compound (B) would be : A. B. C. D.

Description : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a characteristic colour with neutral `FeCl_(3)`

Last Answer : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a ... structure of compound A is : A. B. C. D.

Description : Methylcobalamin is required for formation of (A) Serin from glycine (B) Glycine from serine (C) Methionine from homocysteine (D) All of these

Last Answer : Answer : C

Description : The amino acids required for creatine formation: (A) Glycine (B) Arginine (C) Methionine (D) All of these

Last Answer : Answer : D

Description : Glycine is not required for the formation of (A) Taurocholic acid (B) Creatine (C) Purines (D) Pyrimidines

Last Answer : Answer : A

Description : An aqueous solution of CuSO4 is acidic in nature because the salt undergoes (a) dialysis (b) hydrolysis (c) electrolysis (d) photolysis

Last Answer : Ans:(b)

Description : . A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because (A) Total heat transfer area of ... in a single effect is much lower than that in any effect in a multi-effect system

Last Answer : (B) Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect

Description : Are "mines" a fitting metaphor for "free radicals"?

Last Answer : I would think of free radicals as a rusting of the body.

Description : Arrange the following free radicals in increasing order of stability:

Last Answer : Arrange the following free radicals in increasing order of stability: