Which of the following pairs of compounds belongs to the same homologous series?
A. C3H8 and C3H6 B. C4H10 and C5H10 C. C2H4 and C4H10 D. C2H6 and C4H10 Correct Answer: Option D D. C2H6 and C4H10 Explanation Both ethane and butane are in the same homologous series. ( alkanes)Which of the following pairs of elements forms amphoteric oxides?
A. Be and Mg B. Na and K C. B and Al D. Si and Pb Correct Answer: Option D D. Si and PbA metallic ion Z2+ with an inert gas structure contains 18 electrons. How many protons are contained in this ion?
A. 20 B. 18 C. 16 D. 2 Correct Answer: Option A A. 20The shape of a molecule of water is _______?
A. Non-linear B. Octahedral C. Pyramidal D. Tetrahedral Correct Answer: Option A A. Non-linearProducts
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