In the following the most stable conformation of n-butane is :

In the following the most stable conformation of n-butane is :
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In the following the most stable conformation of n-butane is : A. B. C. D.
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Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` bond in anticloclwise direction, the conformation formed is :

Description : Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` bond in anticloclwise direction, the conformation formed is :

Last Answer : Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` ... A. anti B. fully eclipsed C. gauche D. partially eclipsed

The least stable conformation of cyclohexane is

Description : The least stable conformation of cyclohexane is

Last Answer : The least stable conformation of cyclohexane is A. Boat B. Chair C. Twist boat D. Half chair

The most stable conformation of cyclohexane is the : (a) Haworth form (b) Boat form (c) Newman form (d) Chair form

Description : The most stable conformation of cyclohexane is the : (a) Haworth form (b) Boat form (c) Newman form (d) Chair form

Last Answer : Chair form

Which of the following has two equatorial alkyl substituents in its most stable conformation? (a) 1,1-dimethylcyclohexane (b) cis-1,2-dimethylcyclohexane (c) cis-1,3-diethylcyclohexane (d) cis-1,4-diethylcyclohexane

Description : Which of the following has two equatorial alkyl substituents in its most stable conformation? (a) 1,1-dimethylcyclohexane (b) cis-1,2-dimethylcyclohexane (c) cis-1,3-diethylcyclohexane (d) cis-1,4-diethylcyclohexane

Last Answer : cis-1,3-diethylcyclohexane

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?

Consider the following statements: 1. Detergents do not produce lather with hard water 2. Water gas is a mixture of carbon monoxide and hydrogen 3. Methane is the chief constituent of CNG 4. LPG contains mainly n-butane 5. The correct statements are: (a) 1, 2 and 4 only (b) 1,3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Description : Consider the following statements: 1. Detergents do not produce lather with hard water 2. Water gas is a mixture of carbon monoxide and hydrogen 3. Methane is the chief constituent of CNG 4. LPG contains mainly n-butane 5. The correct ... (b) 1,3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

Last Answer : Ans:(c)

Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

Description : Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

Last Answer : Acetamide

How many monochlorinated isomers would result from the reaction of chlorine with n-butane in the presence of UV light? (a) 2 (b) 4(c) 6 (d) 8

Description : How many monochlorinated isomers would result from the reaction of chlorine with n-butane in the presence of UV light? (a) 2 (b) 4 (c) 6 (d) 8

Last Answer : 2

Which of the following alkanes will have the highest boiling point? (a) n-Octane (b) Isopentane (c) n-Butane (d) Neopentane

Description : Which of the following alkanes will have the highest boiling point? (a) n-Octane (b) Isopentane (c) n-Butane (d) Neopentane

Last Answer : n-Octane

The true statement about the following conformation is :

Description : The true statement about the following conformation is :

Last Answer : The true statement about the following conformation is : A. It has maximum angle strain. B. It ... bonding. D. It has maximum Vander Waal strain.

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

1.The preferred conformation of cis-1,3-dimethylcyclohexane is:?

Description : 1.The preferred conformation of cis-1,3-dimethylcyclohexane is:?

Last Answer : 14

‘Lock’ and ‘Key’ model of enzyme action proposed by Fisher implies that (A) The active site is flexible and adjusts to substrate (B) The active site requires removal of PO4 group (C) The active site is complementary in shape to that of the substrate (D) Substrates change conformation prior to active site interaction

Description : Lock' and Key' model of enzyme action proposed by Fisher implies that (A) The active site is flexible and adjusts to substrate (B) The active site requires removal of PO4 group ( ... complementary in shape to that of the substrate (D) Substrates change conformation prior to active site interaction

Last Answer : Answer : C

An allosteric enzyme influences the enzyme activity by (A) Competiting for the catalytic site with the substrate (B) Changing the specificity of the enzyme for the substrate (C) Changing the conformation of the enzyme by binding to a site other than catalytic site (D) Changing the nature of the products formed

Description : An allosteric enzyme influences the enzyme activity by (A) Competiting for the catalytic site with the substrate (B) Changing the specificity of the enzyme for the substrate (C) Changing the conformation ... binding to a site other than catalytic site (D) Changing the nature of the products formed

Last Answer : Answer : C

Fischer’s ‘lock and key’ model of the enzyme action implies that (A) The active site is complementary in shape to that of substance only after interaction. (B) The active site is complementary in shape to that of substance (C) Substrates change conformation prior to active site interaction (D) The active site is flexible and adjusts to substrate

Description : Fischer's lock and key' model of the enzyme action implies that (A) The active site is complementary in shape to that of substance only after interaction. (B) The active site is ... change conformation prior to active site interaction (D) The active site is flexible and adjusts to substrate

Last Answer : Answer : B

Both α-helix and β-pleated sheet conformation of proteins were proposed by (A) Watson and Crick (B) Pauling and Corey (C) Waugh and King (D) Y.S.Rao

Description : Both α-helix and β-pleated sheet conformation of proteins were proposed by (A) Watson and Crick (B) Pauling and Corey (C) Waugh and King (D) Y.S.Rao

Last Answer : Answer : B

The α-Helix is held in a coiled conformation partially because of : (a) Optical activity (b) Hydrogen bonding (c) Resonance (d) Delocalization

Description : The α-Helix is held in a coiled conformation partially because of : (a) Optical activity (b) Hydrogen bonding (c) Resonance (d) Delocalization

Last Answer : Hydrogen bonding

Which of the following is the “quaternary structure” of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with respect to each other (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone

Description : Which of the following is the quaternary structure of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with ... (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone

Last Answer : description of the way the peptide chains are arranged with respect to each other

Which of the following may characterize the “secondary structure” of proteins? (a) conformation of the protein backbone (b) α-Helix (c) parallel β-pleated sheet (d) all of the above

Description : Which of the following may characterize the “secondary structure” of proteins? (a) conformation of the protein backbone (b) α-Helix (c) parallel β-pleated sheet (d) all of the above

Last Answer : all of the above

The eclipsed and staggered forms of ethane are said to differ in __________. (a) molecular formula (b) configuration (c) conformation (d) constitution

Description : The eclipsed and staggered forms of ethane are said to differ in __________. (a) molecular formula (b) configuration (c) conformation (d) constitution

Last Answer : conformation

The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Description : The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Last Answer : Answer: Option D

Wool breed are judged 60% for their wool, and what percent for their conformation?

Description : Wool breed are judged 60% for their wool, and what percent for their conformation?

Last Answer : 40%

Which of the following is not phase of qualitative research? a. Orientation and overview b. Focused exploration c. Conformation and Closure d. Orientation and closure

Description : Which of the following is not phase of qualitative research? a. Orientation and overview b. Focused exploration c. Conformation and Closure d. Orientation and closure

Last Answer : a. Orientation and overview

The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind acetylcholine B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules C. Phosphorylation results in rapid degradation of enzyme molecules D. They are neither metabolized nor excreted from the body

Description : The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind ... degradation of enzyme molecules D. They are neither metabolized nor excreted from the body

Last Answer : B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules

The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind acetylcholine B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules C. Phosphorylation results in rapid degradation of enzyme molecules D. They are neither metabolized nor excreted from the body

Description : The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind ... degradation of enzyme molecules D. They are neither metabolized nor excreted from the body

Last Answer : B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules

How to fill a Butane lighter that has cotton in it?

Description : How to fill a Butane lighter that has cotton in it?

Last Answer : I have a similar lighter, like a Zippo. You do saturate the cotton with lighter fluid, then it should light. However the problem i had was that my Flint was a pretty crappy flint, so i replaced it with a ... info ::edit:: You should be using a lighter fluid' not butane, i.e. this is what i use

What is the chemical signal of butane ?

Description : What is the chemical signal of butane ?

Last Answer : : The chemical signal of butane is C4H10

Butane Signal What ?

Last Answer : Beuten Of Signal Is C4H10

How do you store butane gas?

Description : How do you store butane gas?

Last Answer : butane gas cylinders should be store away from heat, sparks, and other hot surfaces. these butane gas cylinders should also store in a place where people won't use cigarettes or lights. these cylinders ... in a well-ventilated area that will be away from direct sunlight, food, and other drinks.

Why butane gas is cheaper than LPG?

Description : Why butane gas is cheaper than LPG?

Last Answer : butane it's because when you want to travel in any place you can bring the butane that's the one of advantage of butane. in our country there's a lot of mountain and some of the travellers bring ... our country, there are many of small house and they use the butane because it is cheaper than the Lpg

What is the manufacturing process of butane gas?

Description : What is the manufacturing process of butane gas?

Last Answer : Butane comes from natural gas and can also be found in petroleum. The Manufacturing process involves the separation of gas from the oil where it dissolved, often using equipment installed near the source of the gas pocket.

Where can I refill butane gas cylinder in Dubai?

Description : Where can I refill butane gas cylinder in Dubai?

Last Answer : I have never been to Dubai, but local smoke shops would have your desired product. Butane is used in torches, which can be bought at a smoke shop, so they will also provide butane. It should be fairly cheap.

What is the proportion of Propane and Butane gas in LPG Cylinder?

Description : What is the proportion of Propane and Butane gas in LPG Cylinder?

Last Answer : In Australia, England, and the United States, it's 100% propane. In New Zealand and Belgium, it's 60% propane and 40% butane. In India, Spain, and Hungary, it's 35% propane and 65% butane. In ... on climate. Some even change the ration based on the season. But it is never less than 20% propane.

A 3 L gas mixture of propane `(C_(3)H_(8))` and butane `(C_(4)H_(10))` on complete combustion at 25 C produced 10 L `CO_(2.)` Assuming constant P and

Description : A 3 L gas mixture of propane `(C_(3)H_(8))` and butane `(C_(4)H_(10))` on complete combustion at 25 C produced 10 L `CO_(2.)` Assuming constant P and

Last Answer : A 3 L gas mixture of propane `(C_(3)H_(8))` and butane `(C_(4)H_(10))` on complete combustion at 25 C ... .5L` D. `C_(3)H_(8),0LandC_(4)H_(10),3L`

The minimum torsional strain developed in butane is at dihedral angle (s)

Description : The minimum torsional strain developed in butane is at dihedral angle (s)

Last Answer : The minimum torsional strain developed in butane is at dihedral angle (s) A. `0^(º), 108^(º)` B. `120^(@), 240^ ... (@)` D. `60^(@), 120^(@), 180^(@)`

What are the Intermolecular forces of 1-(2-propoxy2-methyl)-butane?

Description : What are the Intermolecular forces of 1-(2-propoxy2-methyl)-butane?

Last Answer : The intermolecular forces would be dispersion forces.

What is the mr of butane?

Description : What is the mr of butane?

Last Answer : The molar mass of butane is 58,124; for mr explain this abbreviation.

Main constituents of biogas are (a) Methane and carbon monoxide (b) Butane and carbon monoxide (c) Methane and carbon dioxide (d) Ethylene and carbon dioxide

Description : Main constituents of biogas are (a) Methane and carbon monoxide (b) Butane and carbon monoxide (c) Methane and carbon dioxide (d) Ethylene and carbon dioxide

Last Answer : Ans: (c)

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.

The main constituents of biogas are (a) methane and hydrogen (b) carbon monoxide and carbon dioxide (c) butane, propane and nitrogen (d) carbon dioxide and methane

Description : The main constituents of biogas are (a) methane and hydrogen (b) carbon monoxide and carbon dioxide (c) butane, propane and nitrogen (d) carbon dioxide and methane

Last Answer : Ans:(d)

LPG is a mixture of (a) carbon monoxide and carbon dioxide (b) butane and propane (c) methane and ethylene (d) carbon dioxide and oxygen

Description : LPG is a mixture of (a) carbon monoxide and carbon dioxide (b) butane and propane (c) methane and ethylene (d) carbon dioxide and oxygen

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)

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.

This substance is commonly known as alcohol and is also used in medicines such as tincture iodine, cough syrups, and many tonics. This is - (1) Propanol (2) Butane (3) Ethanol (4) Methanol

Description : This substance is commonly known as alcohol and is also used in medicines such as tincture iodine, cough syrups, and many tonics. This is - (1) Propanol (2) Butane (3) Ethanol (4) Methanol

Last Answer : (3) Ethanol Explanation: Ethanol is commonly called alcohol and is the active ingredient of all alcoholic drinks. Also, it is a good solvent and is used in medicines such as tincture iodine, cough syrups, and many tonics.

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.

L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane

Description : L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane

Last Answer : (3) butane Explanation: Liquefied petroleum gas or liquid petroleum gas (LPG) is mostly propane (C3H8), or butane (C4H10). They are most commonly mixtures of these two hydrocarbon gases that ... northern hemisphere winter, the mixes contain more propane, while in summer, they contain more butane.

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).

Which of the following is the best fuel in terms of energy released per gram of fuel? (1) Hydrogen (2) Methane (3) Ethanol (4) Butane

Description : Which of the following is the best fuel in terms of energy released per gram of fuel? (1) Hydrogen (2) Methane (3) Ethanol (4) Butane

Last Answer : (1) Hydrogen Explanation: The amount of energy released increases with the number of bonds present in the chemical substance or fuel. That is because each bond has a certain amount of energy stored in it therefore the more bonds ... KJ/g; Methane: 55.6 KJ/ g; Ethanol: 29.7 KJ /g; Butane: 49.6KJ/g.