QUESTION 11 In the following reaction, which has the increased oxidation number of the underlined element by the reaction?...

QUESTION 12 9.5 mL of 0.20 mol/L potassium permanganate, \(\ce{KMnO4}\), aqueous solution was required to oxidize 20 mL of...

QUESTION 13 A copper (II) chloride, \(\ce{CuCl2}\), aqueous solution was electrolyzed at a current of 1.93 A for 8...

QUESTION 14 When 1.15 g of a volatile liquid was completely evaporated at 127°C, the liquid turned into 831...

QUESTION 15 When a closed flask of constant capacity holds 2.0 mol each of hydrogen and iodide at a...

QUESTION 16 If 68.4 g of sucrose (molecular weight = 342) is dissolved in 500 g of water, what...

QUESTION 17 How many isomers are there for the compound with molecular formula \(\ce{C3H8O}\)? 1 2 3 4 5...

QUESTION 18 Which of the following compounds show a silver mirror reaction? \(\ce{HCOOH}\) \(\ce{CH3COOH}\) \(\ce{CH3OH}\) \(\ce{CH3COCH3}\) \(\ce{CH2=CH2}\) 🔍 Solution...

QUESTION 19 Which of the following compounds is produced when a mixture of ethanol and concentrated sulfuric acid are...

QUESTION 20 An unknown compound has the following percentage composition by weight: C = 54.5%, H = 9.1% and...