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Chemistry Past Questions and Answers

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Chemistry Questions

Question 2811:

A solution of zinc chloride should not be stored in a container made of

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A Tin
B Copper
C Aluminium
D Lead

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Question 2812:

Glucose gives a brick-red precipitate with Fehling's solution because it is

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A Carbohydrate
B An alkanoate
C A reducing sugar
D A non-electrolyte

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Question 2813:

What is the IUPAC name of CH<sub style='font-size: smaller;'>3</sub>CH<sub style='font-size: smaller;'>2</sub>COOCH <sub style='font-size: smaller;'>3</sub>?

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A Ethylethanoate
B Methylethanoate
C Methylpropanoate
D Propylmethanoate

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Question 2814:

The mass of 800cm<sup style='font-size: smaller;'>3</sup> of a gas X at s.t.p. is 1.0g. What is the molar mass of X? [1 mole of a gas at s.t.p occupies 22.4dm <sup style='font-size: smaller;'>3</sup>]

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A 18.0g mol<sup style='font-size: smaller;'>-1</sup>
B 22.4g mol<sup style='font-size: smaller;'>-1</sup>
C 28.0gmol<sup style='font-size: smaller;'>-1</sup>
D 36.0gmol<sup style='font-size: smaller;'>-1</sup>

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Question 2815:

Which of the following compounds is a soapless detergent?

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A C <sub style='font-size: smaller;'>12</sub>H <sub style='font-size: smaller;'>25</sub>OSO<sub style='font-size: smaller;'>3</sub>Na
B C <sub style='font-size: smaller;'>17</sub>H <sub style='font-size: smaller;'>35</sub>COONa
C C <sub style='font-size: smaller;'>6</sub>H<sub style='font-size: smaller;'>5</sub>OH<sub style='font-size: smaller;'>3</sub>
D C <sub style='font-size: smaller;'>4</sub>H<sub style='font-size: smaller;'>9</sub>COOC<sub style='font-size: smaller;'>2</sub>H <sub style='font-size: smaller;'>5</sub>

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