Organic chemistry : Alkanes quiz 3

written by gogorabei | June 8, 2023

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#1. (3) The methane gas is known as the gas of swamps Give reasons ?

a) because It moves down as a bubbles from the swamps due to decaying of the organic matter

a) because It moves down as a bubbles from the swamps due to decaying of the organic matter

b)because It moves up as a bubbles from the bottom of swamps due to decaying of the organic matter

b)because It moves up as a bubbles from the bottom of swamps due to decaying of the organic matter

c)- because It moves up as a bubbles from the bottom of swamps due to generation of the organic matter

c)- because It moves up as a bubbles from the bottom of swamps due to generation of the organic matter

d)- because It moves up as a bubbles from the bottom of swamps due to distillation of the organic matter

d)- because It moves up as a bubbles from the bottom of swamps due to distillation of the organic matter

#2. (4) The difference in the products of halogenation of alkanes in the presence of ultraviolet rays. Give Reasons ...

a)-because the products depend on the ratio between ethane and halogen in the mixture

a)-because the products depend on the ratio between ethane and halogen in the mixture

b)-because the products depend on the ratio between ethene and halogen in the mixture

b)-because the products depend on the ratio between ethene and halogen in the mixture

c)-because the products depend on the ratio between methane and halogen in the mixture

c)-because the products depend on the ratio between methane and halogen in the mixture

d)-because the products depend on the ratio between carbon and halogen in the mixture

d)-because the products depend on the ratio between carbon and halogen in the mixture

#3. (5)Give reason : Soda lime is used instead of caustic soda to prepare methane gas in the lab, by day distillation of anhydrous sodium acetate

a) to increase the melting point of the mixture

a) to increase the melting point of the mixture

b) to decrease the poiling point of the mixture

b) to decrease the poiling point of the mixture

c) to decrease the poiling point of the mixture

c) to decrease the poiling point of the mixture

d)to decrease the melting point of the mixture

d)to decrease the melting point of the mixture