A solution of a salt was acidified with HCI when a few drops of BaCI2 solution were added, a white precipitate was formed. Which of the following anions is present in the salt?
A. CO3²‾ B. NO3‾ C. SO4²‾ D. SO3²‾ Correct Answer: Option C C. SO4²‾A hydrocarbon containing 88.9% carbon has the empirical formula [H = 1 C = 12]
A. CH B. CH2 C. C2H3 D. C2H5 Correct Answer: Option C C. C2H3 Explanation element: C | H Atomic Mass: 12.011 | 1.008 mass in 100 g of compound 88.9 | 11.100 we calculate the number of moles by dividing the mass by the atomic mass # moles in 100 g : 7.40155 | 11.01190...Arrange the following compounds in order of increasing boiling point.
l. CH3CH2CH2OH II. CH3CH2OH III. CH3CH2CH2CH2OH IV. CH3CH2CH2CH2CH3 A. I < II < IV < III B. IV < III < II < I C. I < II < III < IV D. IV < II < I < III Correct Answer: Option D D. IV < II < I < III Explanation Ethanol 78°C...What is the main type of reaction alkenes undergo?
A. Addition B. Condensation C. Elimination D. Substitution Correct Answer: Option A A. AdditionProducts
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