Conformational changes in ethane molecule leads the change in:

Conformational changes in ethane molecule leads the change in:
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Conformational changes in ethane molecule leads the change in: A. torsional angle B. bond angle C. bond length D. All of the above
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Conformational changes in ethane molecule leads the change in:

Description : Conformational changes in ethane molecule leads the change in:

Last Answer : Conformational changes in ethane molecule leads the change in: A. torsional angle B. bond angle C. bond length D. All of the above

Number of conformational isomers of ethane.

Description : Number of conformational isomers of ethane.

Last Answer : Number of conformational isomers of ethane. A. 7 B. 3 C. 4 D. Infinite

Which of the following statement(s) is/are true concerning carrier proteins? a. Carrier proteins are distinguished by three types of mechanisms: carrier-type, channel-type, and conduction-type b. Conformational changes in the membrane protein occur between the conducting and the nonconducting states c. A channel-type carrier protein has two states—closed and open d. Carrier-type transport proteins are equally accessible from either side of the membrane

Description : Which of the following statement(s) is/are true concerning carrier proteins? a. Carrier proteins are distinguished by three types of mechanisms: carrier-type, channel-type, and conduction-type b. ... and open d. Carrier-type transport proteins are equally accessible from either side of the membrane

Last Answer : Answer: b, c Most transport proteins appear to function as carriers, rather than channels. Important distinctions can be made between types of carrier proteins on the basis of transport kinetics. ... a carrier mechanism, the binding site is available only one side of the membrane at any instant

Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. Ion channels are formed by membrane-spanning peptides that are arranged so that polar moieties line a central core c. Ion channel proteins undergo conformational changes between open states and closed states d. Ion channels can be blocked

Description : Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. ... undergo conformational changes between open states and closed states d. Ion channels can be blocked

Last Answer : Answer: a, b, c, d Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane. Ion channels are formed by membrane-spanning peptides that are arranged ... be blocked by ions or organic compounds that enter the channel, bind there, and occlude the pore

Which of the following statements about benzene is correct? (a) All of the carbon atoms are sp3 hybridized. (b) It has no delocalized electrons. (c) The carbon-carbon bond length is longer than that of ethane. (d) It is a planar molecule.

Description : Which of the following statements about benzene is correct? (a) All of the carbon atoms are sp3 hybridized. (b) It has no delocalized electrons. (c) The carbon-carbon bond length is longer than that of ethane. (d) It is a planar molecule.

Last Answer : It is a planar molecule.

What is true in relation to drug receptors: A. All drugs act through specific receptors B. All drug receptors are located on the surface of the target cells C. Agonists induce a conformational change in the receptor D. Partial agonists have low affinity for the receptor

Description : What is true in relation to drug receptors: A. All drugs act through specific receptors B. All drug receptors are located on the surface of the target cells C. Agonists induce a conformational change in the receptor D. Partial agonists have low affinity for the receptor

Last Answer : C. Agonists induce a conformational change in the receptoR

Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of hepatocytes C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Description : Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of ... C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Last Answer : D. Increased synthesis of enzyme protein

What is true in relation to drug receptors: A. All drugs act through specific receptors B. All drug receptors are located on the surface of the target cells C. Agonists induce a conformational change in the receptor D. Partial agonists have low affinity for the receptor

Description : What is true in relation to drug receptors: A. All drugs act through specific receptors B. All drug receptors are located on the surface of the target cells C. Agonists induce a conformational change in the receptor D. Partial agonists have low affinity for the receptor

Last Answer : C. Agonists induce a conformational change in the receptor

Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of hepatocytes C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Description : Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of ... C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Last Answer : D. Increased synthesis of enzyme protein

For the compound `A-CH_(2)-CH_(27)-A` draw the newman projection formula of all the stable conformational it `mu_(obs) = 2D " and " X_(anti) = 0.75 "

Description : For the compound `A-CH_(2)-CH_(27)-A` draw the newman projection formula of all the stable conformational it `mu_(obs) = 2D " and " X_(anti) = 0.75 "

Last Answer : For the compound `A-CH_(2)-CH_(27)-A` draw the newman projection formula of all the stable conformational it ` ... " mu_(gauche.)("If "A= NO_(2))`

Which conformational state of n-butane lies in higher energy state when rotated along `C_(2)-C_(3)` bond?

Description : Which conformational state of n-butane lies in higher energy state when rotated along `C_(2)-C_(3)` bond?

Last Answer : Which conformational state of n-butane lies in higher energy state when rotated along `C_(2)-C_(3)` bond?

What is the term used for isomers that are in rapid equilibrium? (a) keto-enol tautomers (b) constitutional isomers (c) conformational isomers (d) cis-trans isomers

Description : What is the term used for isomers that are in rapid equilibrium? (a) keto-enol tautomers (b) constitutional isomers (c) conformational isomers (d) cis-trans isomers

Last Answer : keto-enol tautomers

Diethyl ether and methyl propyl ether are (a) Conformational isomers (b) Metamers (c) Geometrical isomers (d) Enantiomers

Description : Diethyl ether and methyl propyl ether are (a) Conformational isomers (b) Metamers (c) Geometrical isomers (d) Enantiomers

Last Answer : Metamers

The compounds CH3CH2OCH2CH3 and CH3OCH2CH2CH3 are (a) Enantiomers (b) Conformational isomers (c) Metamers (d) Optical isomers

Description : The compounds CH3CH2OCH2CH3 and CH3OCH2CH2CH3 are (a) Enantiomers (b) Conformational isomers (c) Metamers (d) Optical isomers

Last Answer : Metamers

The oxygenation activity of RuBisCO enzyme in photorespiration leads to the formation of (a) 2 molecules of 3-C compound (b) 1 molecule of 3-C compound (c) 1 molecule of 6-C compound (d) 1 molecule of 4-C compound and 1 molecule of 2-C compound

Description : The oxygenation activity of RuBisCO enzyme in photorespiration leads to the formation of (a) 2 molecules of 3-C compound (b) 1 molecule of 3-C compound (c) 1 molecule of 6-C compound (d) 1 molecule of 4-C compound and 1 molecule of 2-C compound

Last Answer : (b) 1 molecule of 3-C compound

Standard enthalpy of formation of ethane is -84.7kjper mol calculate the enthalpy change for the formation of 0.1kg ethane

Description : Standard enthalpy of formation of ethane is -84.7kjper mol calculate the enthalpy change for the formation of 0.1kg ethane

Last Answer : Standard enthalpy of formation of ethane is -84.7kjper mol calculate the enthalpy change for the formation of 0.1kg ethane

Which of the following is not true of changes in a firm's technological environment? A. New technology allows for new ways of communicating with a firm's customers. B. New technology always leads to benefits for firms. C. New technology can allow new goods and. services to be developed. D. New technology lowers the production learning curve.

Description : Which of the following is not true of changes in a firm's technological environment? A. New technology allows for new ways of communicating with a firm's customers. B. New technology always ... allow new goods and. services to be developed. D. New technology lowers the production learning curve.

Last Answer : New technology always leads to benefits for firms.

Inventions may leads to major changes in technology , way of doing work. a) true b) false

Description : Inventions may leads to major changes in technology , way of doing work. a) true b) false

Last Answer :  Ans : true

Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule

Description : Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule

Last Answer : Answer : C

When one glucose molecule is completely oxidised, it changes (a) 36 ADP molecules into 36 ATP molecules (b) 38 ADP molecules into 38 ATP molecules (c) 30 ADP molecules into 30 ATP molecules (d) 32 ADP molecules into 32 ATP molecules.

Description : When one glucose molecule is completely oxidised, it changes (a) 36 ADP molecules into 36 ATP molecules (b) 38 ADP molecules into 38 ATP molecules (c) 30 ADP molecules into 30 ATP molecules (d) 32 ADP molecules into 32 ATP molecules.

Last Answer : (b) 38 ADP molecules into 38 ATP molecules

Using IUPAC norms write the formulae for the following: (a) Potassium trioxalatoaluminate (III) (b) Dichloridobis(ethane-l, 2-diamine) cobalt (III) -Chemistry

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]+

Using IUPAC norms write the formulae for the following: (a) Tris(ethane-1,2-diamine) chromium (III) chloride (b) Potassium tetrahydroxozincate(II) -Chemistry

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]

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

What are the chemical signals of ethane ?

Description : What are the chemical signals of ethane ?

Last Answer : Chemical code of ethane CH = CH.

What is the gross signal of ethane ?

Description : What is the gross signal of ethane ?

Last Answer : Ethane coarse signal CH.

What is the sign of ethane ?

Description : What is the sign of ethane ?

Last Answer : Ethan's signal: C2 H2.

What is the signal of ethane ?

Description : What is the signal of ethane ?

Last Answer : Ethane signal: C2H6.

The eclipsed and staggered conformation of ethane is due to -

Description : The eclipsed and staggered conformation of ethane is due to -

Last Answer : The eclipsed and staggered conformation of ethane is due to - A. Free rotation about C-C single bond ... rotation about C-C bond D. None of the above

How many total sodium ions are present in one formula uint of sodium ethane-1,2-diaminetetraacetatochromate (II) and sodium hexanitrito cobaltate (III

Description : How many total sodium ions are present in one formula uint of sodium ethane-1,2-diaminetetraacetatochromate (II) and sodium hexanitrito cobaltate (III

Last Answer : How many total sodium ions are present in one formula uint of sodium ethane-1,2- ... II) and sodium hexanitrito cobaltate (III) ?

A solution of `(+)`-2-chloro-2-phenyl ethane in toluene racemises slowly in the presence of small amount of `SbCl_(5)`, due to the formation of:

Description : A solution of `(+)`-2-chloro-2-phenyl ethane in toluene racemises slowly in the presence of small amount of `SbCl_(5)`, due to the formation of:

Last Answer : A solution of `(+)`-2-chloro-2-phenyl ethane in toluene racemises slowly in the presence of ... carbanion B. carbene C. free radical D. carbocation

What is the number of hydrogen atoms in 90 amu of ethane?

Description : What is the number of hydrogen atoms in 90 amu of ethane?

Last Answer : The chemical formula of ethane is C2H6; 18 hydrogen atoms.

Octane number of gasoline is obtained by comparing the performance of the engine when running on a mixture of the following hydrocarbons A. ethane and methane B. normal heptane and iso-octane C. iso-heptane and octane D. iso-octane and TEL

Description : Octane number of gasoline is obtained by comparing the performance of the engine when running on a mixture of the following hydrocarbons A. ethane and methane B. normal heptane and iso-octane C. iso-heptane and octane D. iso-octane and TEL

Last Answer : ANSWER : B

Major constituent of natural gas is a) ethane b) methane c) butane d) propane

Description : Major constituent of natural gas is a) ethane b) methane c) butane d) propane

Last Answer : Answer: b Explanation: Only methane is the major constituent of natural gas.

Marsh gas, formed from decaying organic matter and in coal mines is (a) carbon dioxide (b) methane (c) ethane (d) carbon monoxide

Description : Marsh gas, formed from decaying organic matter and in coal mines is (a) carbon dioxide (b) methane (c) ethane (d) carbon monoxide

Last Answer : Ans:(b)

Which hydrocarbon is formed by the action of sodium on ethyl iodide? (a) Methane (b) Ethane (c) Ethylene (d) Butane

Description : Which hydrocarbon is formed by the action of sodium on ethyl iodide? (a) Methane (b) Ethane (c) Ethylene (d) Butane

Last Answer : Ans:(d)

The chief constituent of gobar gas is (a) Methane (b) Ethane (c) Propane (d) Chlorine

Description : The chief constituent of gobar gas is (a) Methane (b) Ethane (c) Propane (d) Chlorine

Last Answer : Ans:(a)

The carbon -carbon bond length is shortest in (a) Ethane (b) Ethylene (c) Benzene (d) Acetylene

Description : The carbon -carbon bond length is shortest in (a) Ethane (b) Ethylene (c) Benzene (d) Acetylene

Last Answer : Ans:(d)

The gas used for artificial ripening of green fruit is - (1) ethane (2) ethylene (3) carbon dioxide (4) acetylene

Description : The gas used for artificial ripening of green fruit is - (1) ethane (2) ethylene (3) carbon dioxide (4) acetylene

Last Answer : (2) ethylene Explanation: Ethylene gas is used for artificial ripening of green fruit. Ethylene is a natural ripener, but it is also used as an artificial fruit ripener.

(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

Which of the following is the major constituent of LPG? (1) Methane (2) Ethane (3) Propane (4) Butane

Description : Which of the following is the major constituent of LPG? (1) Methane (2) Ethane (3) Propane (4) Butane

Last Answer : (4) Butane Explanation: Butanes are highly flammable, colourless, easily liquefied gases. When blended with propane and other hydrocarbons, it is referred to commercially as LPG, for liquefied petroleum gas.

Which of the following gas is used in cigarette lighters? (1) Butane (2) Propane (3) Methane (4) Ethane

Description : Which of the following gas is used in cigarette lighters? (1) Butane (2) Propane (3) Methane (4) Ethane

Last Answer : (1) Butane Explanation: Butane, a highly flammable, colorless, easily liquefied gas used in gas-type lighters and butane torches. Naphtha, a volatile flammable liquid hydrocarbon mixture used in wick-type lighters and burners.

The gas used for artificial ripening of green fruit is - (1) Acetylene (2) Ethylene (3) Ethane (4) Carbon dioxide

Description : The gas used for artificial ripening of green fruit is - (1) Acetylene (2) Ethylene (3) Ethane (4) Carbon dioxide

Last Answer : (2) Ethylene Explanation: Fruits such as apples and pears emit a greater amount of ethylene gas in fruits, which affects their ripening.

Biogas majorly contains - (1) Ethane (2) Methane (3) Hydrogen (4) CO

Description : Biogas majorly contains - (1) Ethane (2) Methane (3) Hydrogen (4) CO

Last Answer : (2) Methane Explanation: Biogas is a mixture of different gases, major portion in biogas being methane (CH4) and carbon dioxide (CO2). It also contains traces of other gases like hydrogen (H2), Moisture (H2O) , hydrogen sulfide (H2S) etc.

The major component in the LPG is - (1) methane (2) butane (3) ethane (4) propane

Description : The major component in the LPG is - (1) methane (2) butane (3) ethane (4) propane

Last Answer : (2) butane Explanation: Butanes are highly flammable, colourless, easily liquefied gases. When blended with propane and other hydrocarbons, it is referred to commercially as LPG, for liquified petroleum gas. It is used as a petrol component.

Which of the following gases is produced due to incomplete combustion of fuel? (1) Carbon Dioxide (2) Carbon Monoxide (3) Methane (4) Ethane

Description : Which of the following gases is produced due to incomplete combustion of fuel? (1) Carbon Dioxide (2) Carbon Monoxide (3) Methane (4) Ethane

Last Answer : (2) Carbon Monoxide Explanation: Carbon monoxide (CO) is an odorless, colorless gas formed by the incomplete com bustion of fuels. It is produced from the partial oxidation of carbon-containing com pounds; it forms when there is not enough oxygen to produce carbon dioxide.

The gas that causes suffocation and death when coal or coke is burnt in a closed room is - (1) Methane (2) Ethane (3) Carbon monoxide (4) Carbon dioxide

Description : The gas that causes suffocation and death when coal or coke is burnt in a closed room is - (1) Methane (2) Ethane (3) Carbon monoxide (4) Carbon dioxide

Last Answer : (3) Carbon monoxide Explanation: Exhaust fumes of motor cars, gases produced, from coal fire in a closed room and coal gas, all contain carbon monoxide, which is the cause of their ... is stable compound. This causes oxygen starvation in the body tissues and eventually causes death by suffocation.

Which hydrocarbons are the major constituents of 'LPG'? (1) Methane and Ethane (2) Propane and Butane (3) Pentane and Benzene (4) Only Methane

Description : Which hydrocarbons are the major constituents of 'LPG'? (1) Methane and Ethane (2) Propane and Butane (3) Pentane and Benzene (4) Only Methane

Last Answer : (2) Propane and Butane Explanation: Cooking gas, also known as Liquefied Petroleum Gas (LPG) is primarily propane (C3Hg) and butane (C4H10).

Biogas majorly contains? (1) Ethane (2) Methane (3) Hydrogen (4) CO

Description : Biogas majorly contains? (1) Ethane (2) Methane (3) Hydrogen (4) CO

Last Answer : (2) Methane Explanation: Biogas is a mixture of different gases, major portion in biogas being methane (CH4) and carbon dioxide (CO2). It also contains traces of other gases like hydrogen (H2), Moisture (H2O), hydrogen sulphide (H2S) etc.

Which of the following gas is used in cigarette lighters? (1) Butane (2) Propane (3) Methane (4) Ethane

Description : Which of the following gas is used in cigarette lighters? (1) Butane (2) Propane (3) Methane (4) Ethane

Last Answer : (1) Butane Explanation: Butane, a highly flammable, colorless, easily liquefied gas used in gas-type lighters and butane torches. Naphtha, a volatile flammable liquid hydrocarbon mixture used in wick-type lighters and burners.

The depletion of ozone layer is due to - (1) chloro fluoro carbon (2) carbon dioxide (3) sulphur dioxide (4) ethane

Description : The depletion of ozone layer is due to - (1) chloro fluoro carbon (2) carbon dioxide (3) sulphur dioxide (4) ethane

Last Answer : (1) chloro fluoro carbon Explanation: A chlorofluorocarbon (CFC) is an organic compound that contains only carbon, chlorine, hydrogen and fluorine, produced as a volatile derivative of methane and ... R-4104 by the Montreal Protocol because they contribute to ozone depletion in the upper atmosphere.