Organic chemistry : Alkanes quiz 3

written by gogorabei | June 8, 2023

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#1. (6)Give reason : Fuel cylinders in hot countries contain higher amount of butane gas than that in cold countries.

a)Because propane is less volatile(less boiling point) than butane

a)Because propane is less volatile(less boiling point) than butane

b)Because propane is more volatile(less boiling point) than butane

b)Because propane is more volatile(less boiling point) than butane

c)Because propane is more volatile(more boiling point) than butane

c)Because propane is more volatile(more boiling point) than butane

d)b)Because butane is more volatile(less boiling point) than propane

d)b)Because butane is more volatile(less boiling point) than propane

#2. (7) Give reason: Some metals are covered by heavy alkanes

a)to protect them from rusting and corrosion where alkanes are polar compound not dissolve in water

a)to protect them from rusting and corrosion where alkanes are polar compound not dissolve in water

b) to protect them from rusting and corrosion where alkanes are non-polar compound dissolve in water

b) to protect them from rusting and corrosion where alkanes are non-polar compound dissolve in water

c) to protect them from rusting and corrosion where alkanes are polar compound dissolve in water

c) to protect them from rusting and corrosion where alkanes are polar compound dissolve in water

d) to protect them from rusting and corrosion where alkanes are non-polar compound not disolve in water

d) to protect them from rusting and corrosion where alkanes are non-polar compound not disolve in water

#3. (8)Give reason: Alkanes are comparatively inactive compounds

a)due to the weak sigma bond between carbon atoms which can not be broken easily

a)due to the weak sigma bond between carbon atoms which can not be broken easily

b)due to strong sigma bond between carbon atoms which can be broken easily

b)due to strong sigma bond between carbon atoms which can be broken easily

c)due to strong sigma bond between carbon atoms which can be broken easily

c)due to strong sigma bond between carbon atoms which can be broken easily

d)due to strong sigma bond between carbon atoms which can not be broken easily

d)due to strong sigma bond between carbon atoms which can not be broken easily