19 Questions
Who is credited with the discovery of chlorine in 1774?
Carl Wilhelm Scheele
What notable achievement is Ferdinand Frederick Henri Moissan known for?
Winning a Nobel Prize for his work with fluorine
What mixture is known to dissolve gold?
Aqua regia
Which chemist is known for their work with hydrofluoric acid despite its dangerous nature?
Ferdinand Frederick Henri Moissan
When was sodium chloride (table salt) first known to be used?
3000 BC
Who is most likely the first person known to be environmentally conscious?
Georgius Agricola
What gas is released when gold is dissolved in aqua regia?
Chlorine
Who was known by the Latinized name 'Gerber'?
Abu Musa Jābir ibn Hayyān
Which scientist is associated with the term 'fluorine martyrs'?
Ferdinand Frederick Henri Moissan
What is the order of reactivity of chlorine fluorides when diluted with nitrogen?
ClF3 > BrF3 > BrF5 > IF7 > ClF > IF5 > BrF
What type of reaction occurs when chlorine fluorides react with strong bases?
Formation of anions
What is the formula for hypochlorous acid?
HOCl
What is the trend in acidity of oxyacids of chlorine?
The acidity increases with the number of oxygen atoms.
How can solutions of hypochlorous acid be obtained?
By electrolysis of brine solution or by reaction of Cl2O with water or mercury oxide.
What is the consequence of increasing the number of oxygen atoms in oxyacids of chlorine?
The acidity increases.
What is the reaction between ClF and CsF?
ClF + CsF → Cs+ + ClF2-
What is the formula for perchloric acid?
HClO4
What is the reaction between ClF3 and AsF5?
ClF3 + AsF5 → ClF2+ + AsF6-
What is the trend in reactivity of chlorine fluorides?
ClF3 > BrF3 > BrF5 > IF7 > ClF > IF5 > BrF
This quiz covers the reactions and properties of chlorous acid and hypochlorite, including oxidation, disproportionation, and preparation methods.
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