drugs
margarine
paraffin wax
soapy detergents
Correct answer is B
This is called hydrogenation. It includes the manufacture of margarine from animal or vegetable fats and oils.
Ethene reacts with hydrogen in the presence of a finely divided nickel catalyst at a temperature of about 150°C. Ethane is produced.
CnH2n
CnH2n
CnH2n+2
CnH2n-2
Correct answer is D
No explanation has been provided for this answer.
In the diagram illustrated above, chalaza is formed in the part labelled
I
II
III
IV
Correct answer is D
No explanation has been provided for this answer.
Alkenes undergo the following reactions except
addition
hydration
polymerization
substitution
Correct answer is D
No explanation has been provided for this answer.
Which of the following pairs of substances can be distinguished by use of NaHCO3 solution?
CH 3CH2OH and HCOOCH3
CH 3CH2OH and CH3COOH
CH3COOH and HCOOH
CH 3CH2OH and CH3OH
Correct answer is B
No explanation has been provided for this answer.
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