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HOBET Review Questions - Question List

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46. Which of the following compounds contains a double bond?

C₂H₆
C₂H₄
C₃H₈
CH₄
C₄H₁₀

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47. A saturated solution of NaCl is heated until more solute can be dissolved. How is this solution best described?

Dilute
Immiscible
Supersaturated
Unsaturated
Hydrophobic

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48. A 40.0 gram sample of a radioactive element decays to 5.0 grams in 15 hours. What is the half-life of this element?

3 hours
2 hours
6 hours
7.5 hours
5 hours

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49. Which of the following metals reacts explosively when placed in water?

Manganese
Silver
Zinc
Sodium
Chromium

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50. Which of the following families contains characteristically nonreactive elements?

Alkali metals
Alkaline earth metals
Halides
Halogens
Noble gases

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HOBET Review Questions - Question List

Select how would you like to study

Select how would you like to study