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Chemistry Past Questions and Answers

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Chemistry Questions

Question 2581:

When dilute copper (ll) chloride solution is electrolysed, the reaction at the cathode is represented by the equation

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A Cu â†’ Cu<sup style='font-size: smaller;'>2+</sup> + 2e-
B Cu<sup style='font-size: smaller;'>2+</sup> + 2e- → Cu
C 40H- - 4e- â†’ O<sub style='font-size: smaller;'>2</sub> + 2H<sub style='font-size: smaller;'>2</sub>O
D 2CI- â†’ CI<sub style='font-size: smaller;'>2</sub> + 2e

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Question 2582:

How many carbon atoms are present in one molecule of 2-methylpropane?

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A 2
B 3
C 4
D 5

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Question 2583:

Which of the following is the most reactive towards bromine?

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A Methane
B Benzene
C Ethyne
D Hexane

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Question 2584:

Which of the following compounds is unsaturated?

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A 2-methylbutane
B Chloromethane
C Methylbenzene
D 1,2-dibromoethane

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Question 2585:

Which of the following compounds reacts with sodium hydroxide to form a salt?

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A CH <sub style='font-size: smaller;'>3</sub>CH <sub style='font-size: smaller;'>2</sub>COOH
B (CH<sub style='font-size: smaller;'>3</sub>) <sub style='font-size: smaller;'>3</sub>COH
C CH<sub style='font-size: smaller;'>3</sub>CH=CH <sub style='font-size: smaller;'>2</sub>
D C <sub style='font-size: smaller;'>6</sub>H <sub style='font-size: smaller;'>12</sub>O <sub style='font-size: smaller;'>6</sub>

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