The element having the highest boiling point?

The element having the highest boiling
point?
by

1 Answer

Answer :

Rhenium
by

Related questions

The element with highest boiling point in the following is

Description : The element with highest boiling point in the following is

Last Answer : The element with highest boiling point in the following is A. Oxygen B. Sulphur C. Tellurium D. Polonium

The metal having highest boiling point?

Description : The metal having highest boiling point?

Last Answer : Tungston

Which one of the following is the most characteristic property of an element? (a) Density (b) Boiling point (c) Mass number (d) Atomic number

Description : Which one of the following is the most characteristic property of an element? (a) Density (b) Boiling point (c) Mass number (d) Atomic number

Last Answer : Ans:(d)

What element probably has a boiling point most and least similar to the boiling point of calcium?

Description : What element probably has a boiling point most and least similar to the boiling point of calcium?

Last Answer : This element is strontium (Sr).

What element has a lower boiling point than hydrogen?

Description : What element has a lower boiling point than hydrogen?

Last Answer : ANSWER: HELIUM

Who has the highest boiling point in HBr & HCl and why ?

Description : Who has the highest boiling point in HBr & HCl and why ?

Last Answer : answer:

What is a mixture with the highest constant boiling point ?

Description : What is a mixture with the highest constant boiling point ?

Last Answer : When a mixture boils together like a pure liquid at a temperature higher than the boiling point of its constituents, it is called a mixture with the highest fixed boiling point.

What is the highest constant boiling point mixture ?

Description : What is the highest constant boiling point mixture ?

Last Answer : : The boiling point of a fixed boiling point mixture which is greater than the boiling point of each of its constituents is called the highest fixed boiling point mixture

Amongest `H_(2)O,H_(2)S,H_(2)Se` and `H_(2)Te` the one with highest boiling point is :

Description : Amongest `H_(2)O,H_(2)S,H_(2)Se` and `H_(2)Te` the one with highest boiling point is :

Last Answer : Amongest `H_(2)O,H_(2)S,H_(2)Se` and `H_(2)Te` the one with highest boiling point is : A ... H-bonding D. `H_(2)Se` because of lower molecular weight

Amongest `H_(2)O,H_(2)S,H_(2)Se` and `H_(2)Te` the one with highest boiling point is :

Description : Amongest `H_(2)O,H_(2)S,H_(2)Se` and `H_(2)Te` the one with highest boiling point is :

Last Answer : Amongest `H_(2)O,H_(2)S,H_(2)Se` and `H_(2)Te` the one with highest boiling point is : A ... H-bonding D. `H_(2)Se` because of lower molecular weight

Consider three compounds : H2S, H2Se and H2O. Identify which has the highest boiling point. Justify.

Description : Consider three compounds : H2S, H2Se and H2O. Identify which has the highest boiling point. Justify.

Last Answer : Consider three compounds : H2S, H2Se and H2O. Identify which has the highest boiling point. Justify.

Which of the following has highest boiling point and why?(L-II) (a) 2 methylpentane (b) 2,3 dimethyl butane (c) 2,2 dimythylbutane

Description : Which of the following has highest boiling point and why?(L-II) (a) 2 methylpentane (b) 2,3 dimethyl butane (c) 2,2 dimythylbutane

Last Answer : Ans. As the branching increases, surface area decreases. As a result, magnitude of Vander Waals forces of attraction decreases and hence the boiling point decreases. Thus, the overall order of decreasing boiling point is: 2 methylpentane (333k) > 2,3 dimethylbutane (331k) > 2,2 dimethylbutane(323k)

(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.

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.

Out of pentane, 2-methylbutane and 2,2-dimethylpropane which has the highest boiling point and why?

Description : Out of pentane, 2-methylbutane and 2,2-dimethylpropane which has the highest boiling point and why?

Last Answer : Ans. Pentane having a continuous chain of five carbon atoms has the highest boiling point (309.1K) whereas 2,2 - dimethylpropane boils at 282.5K. With increase in number ... and therefore weak intermolecular forces between spherical molecules, which are overcome at relatively lower temperatures

Use the information and data given below to answer the questions • Stronger intermolecular forces result in higher boiling point • Strength of London forces increases with the number of electrons in the molecule • Boiling point of HF ,HCl, HBr and HI are 293K,189K,206K and 238K respectively (a) Which type of intermolecular forces are present in the molecules HCl, HBr and HI? (b) Looking at the trend of boiling points of HCl, HBr and HI, explain, out of dipole interaction and London interaction, which one predominant here? (c) Why is the boiling point of HF highest while that of HCl lowest?

Description : Use the information and data given below to answer the questions Stronger intermolecular forces result in higher boiling point Strength of London forces increases with the number of electrons in the molecule ... here? (c) Why is the boiling point of HF highest while that of HCl lowest?

Last Answer : Ans :( a) In the molecules HCl, HBr and HI, dipole-dipole interaction and London forces are present. (b) Dipole moment of HCl > HBr > HI but boiling point of HCl < HBr

Which of the following has the highest boiling point?(a) CH3CH2CH2CH3 (b) CH3CH2CH2CH2Cl (c) CH3CH2CH2CH2NH2 (d) CH3CH2CH2CH2F

Description : Which of the following has the highest boiling point? (a) CH3CH2CH2CH3 (b) CH3CH2CH2CH2Cl (c) CH3CH2CH2CH2NH2 (d) CH3CH2CH2CH2F

Last Answer : CH3CH2CH2CH2NH2

Which compound has the highest boiling point? 1. CH3CH2CH3 2. CH3CH2OH 3. CH3CH2NH2 (a) 1 (b) 2 (c) 3 (d) 2 and 3 have similar boiling points

Description : Which compound has the highest boiling point? 1. CH3CH2CH3 2. CH3CH2OH 3. CH3CH2NH2 (a) 1 (b) 2 (c) 3 (d) 2 and 3 have similar boiling points

Last Answer : 2

Which of the following will have the highest boiling point? (a) Methylamine (b) Diethylamine (c) Ethylamine (d) Triethylamine

Description : Which of the following will have the highest boiling point? (a) Methylamine (b) Diethylamine (c) Ethylamine (d) Triethylamine

Last Answer : Triethylamine

Assuming roughly equivalent molecular weights, which of the following would have the highest boiling point? (a) a tertiary amine (b) a quaternary ammonium salt (c) an alcohol (d) an ether

Description : Assuming roughly equivalent molecular weights, which of the following would have the highest boiling point? (a) a tertiary amine (b) a quaternary ammonium salt (c) an alcohol (d) an ether

Last Answer : a quaternary ammonium salt

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

Which compound has the highest boiling point? (a) CH3CH3 (b) CH3OCH3 (c) CH3CH2OH (d) CH3COOH

Description : Which compound has the highest boiling point? (a) CH3CH3 (b) CH3OCH3 (c) CH3CH2OH (d) CH3COOH

Last Answer : CH3COOH

Which of the following will have the highest boiling point? (a) Methanal (b) Ethanal (c) Propanal (d) Butanal

Description : Which of the following will have the highest boiling point? (a) Methanal (b) Ethanal (c) Propanal (d) Butanal

Last Answer : Butanal

Which of the following will have the highest boiling point? (a) Propanone (b) 2-Pentanone (c) Butanone (d) 2-Hexanone

Description : Which of the following will have the highest boiling point? (a) Propanone (b) 2-Pentanone (c) Butanone (d) 2-Hexanone

Last Answer : 2-Hexanone

Which of the following would have the highest boiling point? (a) Dimethyl ether (b) Diethyl ether (c) Ethyl methyl ether (d) Diisopropyl ether

Description : Which of the following would have the highest boiling point? (a) Dimethyl ether (b) Diethyl ether (c) Ethyl methyl ether (d) Diisopropyl ether

Last Answer : Diisopropyl ether

Which of the following would have the highest boiling point? (a) 1-Butano(b) Butane (c) 1-Butene (d) 1-Butynel

Description : Which of the following would have the highest boiling point? (a) 1-Butanol (b) Butane (c) 1-Butene (d) 1-Butyne

Last Answer : 1-Butanol

Rank the following substances in order of increasing boiling point (lowest → highest): (1) CH3CH2CH2CH2OH, (2) (CH3)2CHOCH3, (3) (CH3)3COH (a) (1) < (2) < (3) (b) (2) < (1) < (3) (c) (2) < (3) < (1) (d) (3) < (2) < (1)

Description : Rank the following substances in order of increasing boiling point (lowest → highest): (1) CH3CH2CH2CH2OH, (2) (CH3)2CHOCH3, (3) (CH3)3COH (a) (1) < (2) < (3) (b) (2) < (1) < (3) (c) (2) < (3) < (1) (d) (3) < (2) < (1)

Last Answer : (2) < (3) < (1)

Which of the following has the highest boiling point? (a) CH3CH2OH (b) CH3CH2CH2CH2OH (c) CH3OH (d) CH3CH2CH2OH

Description : Which of the following has the highest boiling point? (a) CH3CH2OH (b) CH3CH2CH2CH2OH (c) CH3OH (d) CH3CH2CH2OH

Last Answer : CH3CH2CH2CH2OH

. Which of the following has the highest boiling point? (a) CH3CH2CH2CH2Cl (b) HOCH2CH2CH2CH2OH (c) CH3CH2CH2CH2OH (d) CH3CH2OCH2CH3

Description : Which of the following has the highest boiling point? (a) CH3CH2CH2CH2Cl (b) HOCH2CH2CH2CH2OH (c) CH3CH2CH2CH2OH (d) CH3CH2OCH2CH3

Last Answer : HOCH2CH2CH2CH2OH

Which of the following has the highest boiling point? (a) diethyl ether (b) n-Butyraldehyde (c) n-propyl chloride (d) n-Butyl alcohol

Description : Which of the following has the highest boiling point? (a) diethyl ether (b) n-Butyraldehyde (c) n-propyl chloride (d) n-Butyl alcohol

Last Answer : n-Butyl alcohol

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

__________________ represents the highest pressure and highest temperature at which liquid and vapor can coexist in equilibrium.  a) Critical Point  b) Boiling Point  c) Quality Point  d) None of the above

Description : __________________ represents the highest pressure and highest temperature at which liquid and vapor can coexist in equilibrium.  a) Critical Point  b) Boiling Point  c) Quality Point  d) None of the above

Last Answer : Critical Point

Which of the following would you expect to have the highest boiling point? w) methane x) carbon tetrachloride y) chloroform z) chloromethane

Description : Which of the following would you expect to have the highest boiling point? w) methane x) carbon tetrachloride y) chloroform z) chloromethane

Last Answer : ANSWER: X -- CARBON TETRACHLORIDE

Which of the following compounds has the highest boiling point? w) CH4 x) CCL4 y) HI z) IF5

Description : Which of the following compounds has the highest boiling point? w) CH4 x) CCL4 y) HI z) IF5

Last Answer : ANSWER: Z -- IF5

Separating a substance from a mixture of liquid having I different boiling point is called?

Description : Separating a substance from a mixture of liquid having I different boiling point is called?

Last Answer : Distillation

Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation. (A) Molecular (B) Extractive (C) Steam (D) Simple

Description : Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation. (A) Molecular (B) Extractive (C) Steam (D) Simple

Last Answer : (D) Simple

Element having the highest electronega- tivity?

Description : Element having the highest electronega- tivity?

Last Answer : Fluorine

Element having highest reactivity?

Description : Element having highest reactivity?

Last Answer : Fluorine

The natural element having highest atomic weight?

Description : The natural element having highest atomic weight?

Last Answer : Uranium

The second element having highest reac- tivity?

Description : The second element having highest reac- tivity?

Last Answer : Chlorine

The element having highest reactivity or electro-negativity?

Description : The element having highest reactivity or electro-negativity?

Last Answer : Fluorine

The element having highest ionisation potential is

Description : The element having highest ionisation potential is

Last Answer : The element having highest ionisation potential is A. H B. N C. O D. He

How does electro negativity vary down the group 17 and why? How does it vary from left to right in the period? Name an element having highest electro negativity.

Description : How does electro negativity vary down the group 17 and why? How does it vary from left to right in the period? Name an element having highest electro negativity.

Last Answer : Ans. Electro negativity decreases down the group due to increase in atomic size. It increases along the period from left to right due to decrease in atomic size. Fluorine (F) has highest electro negativity.

Which natural element has the highest melting point?

Description : Which natural element has the highest melting point?

Last Answer : Tungsten

The metallic element with the highest melting point is: w) Ta x) W y) Rh z) Mo

Description : The metallic element with the highest melting point is: w) Ta x) W y) Rh z) Mo

Last Answer : ANSWER: X -- W

Flash distillation is suitable for the separation of components (A) Having very close boiling points (B) Which form maximum boiling azeotrope (C) Having very wide boiling points (D) Which form minimum boiling azeotrope

Description : Flash distillation is suitable for the separation of components (A) Having very close boiling points (B) Which form maximum boiling azeotrope (C) Having very wide boiling points (D) Which form minimum boiling azeotrope

Last Answer : (C) Having very wide boiling points

Pick out the wrong statement. (A) In case of heat transfer by purely forced convection, GR /Re 2 ≤ 1 (B) The equivalent diameter of heat transfer for a duct of square cross￾section (having each side as 'x') is equal to 4x (C) Distillation process is not the same as evaporation (D) The effectiveness of nucleate boiling depends basically on the ease with which the bubbles are formed and detached from the heating surface

Description : Pick out the wrong statement. (A) In case of heat transfer by purely forced convection, GR /Re 2 ≤ 1 (B) The equivalent diameter of heat transfer for a duct of ... nucleate boiling depends basically on the ease with which the bubbles are formed and detached from the heating surface

Last Answer : (B) The equivalent diameter of heat transfer for a duct of square cross￾section (having each side as 'x') is equal to 4x

Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at 35°C (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C (C) Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C (D) A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

Why is it easier to cook in a pressure cooker? (a) High pressure creates turbulence (b) More steam is formed inside the cooker (c) Boiling point of water is raised (d) Boiling point of water is lowered

Description : Why is it easier to cook in a pressure cooker? (a) High pressure creates turbulence (b) More steam is formed inside the cooker (c) Boiling point of water is raised (d) Boiling point of water is lowered

Last Answer : Ans:(c)

When a liquid is at its boiling point, no temperature change takes place due to heating. The energy supplied due to heating (a) Is used up to increase the potential energy of the liquid molecules (b) Is used up to increase the kinetic energy of the molecules (c) Is used up to increase the kinetic energy and potential energy of the molecules (d) Is wasted

Description : When a liquid is at its boiling point, no temperature change takes place due to heating. The energy supplied due to heating (a) Is used up to increase the potential energy of the liquid molecules (b ... c) Is used up to increase the kinetic energy and potential energy of the molecules (d) Is wasted

Last Answer : Ans:(a)

At high altitudes it is difficult to cook eggs or vegetables properly because of (a) High boiling point of water and low atmospheric pressure (b) Low boiling point of water and low atmospheric pressure (c) Low value of acceleration due to gravity (d) High atmospheric pressure and low billing point of water

Description : At high altitudes it is difficult to cook eggs or vegetables properly because of (a) High boiling point of water and low atmospheric pressure (b) Low boiling point of water and low atmospheric ... Low value of acceleration due to gravity (d) High atmospheric pressure and low billing point of water

Last Answer : Ans:(b)