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Chemistry Past Questions and Answers

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Chemistry Questions

Question 551:

Methylethanoate reacts with ammonia to yield?

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A Mettylamine and ethanol
B Ethylamine and methanol
C Methanamide and ethanol
D Ethanamide and methanol

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Question 552:

Alkanoates are formed by the reaction of alkanoic acid with?

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A Alkyl halides
B Alkanols
C Ethers
D Sodium

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Question 553:

The four classes of hydrocarbons are?

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A Ethane, ethene, ethyne and benzene
B Alkanes, alkenes, alkynes and aromatics
C Alkanes, alkenes, alkynes and benzene
D Methane, ethane , propane and butane

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Question 554:

Which of the following compounds has the highest boiling point?

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A CH<sub style='font-size: smaller;'>3</sub>CH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>2</sub>HO
B CH<sub style='font-size: smaller;'>3</sub>CH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>2</sub>CHO
C CH<sub style='font-size: smaller;'>3</sub>CH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>3</sub>
D CH<sub style='font-size: smaller;'>3</sub>CH<sub style='font-size: smaller;'>2</sub>OCH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>3</sub>

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Question 555:

Detergents have the general formula?

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A R(CH<sub style='font-size: smaller;'>2</sub>)<sub style='font-size: smaller;'>n</sub>OH
B RSO<sub style='font-size: smaller;'>3</sub><sup style='font-size: smaller;'>-</sup>Na<sup style='font-size: smaller;'>+</sup>
C RSO<sup style='font-size: smaller;'>-</sup><sub style='font-size: smaller;'>2</sub>Na<sup style='font-size: smaller;'>+</sup>
D RSO<sub style='font-size: smaller;'>2</sub>H

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