AS AQA CHEMISTRY INORGANIC COMPREHENSIVE QUESTIONS AND DETAILED ANSWERS.

AS AQA CHEMISTRY INORGANIC
COMPREHENSIVE QUESTIONS AND
DETAILED ANSWERS.

what is the equation for making bleach - CorreCt Answers -Cl₂ + 2NaOH →
NaCl + NaClO + H₂O


chemical formula for bleach - CorreCt Answers -sodium chlorate
NaClO


give a use of sodium chlorate - CorreCt Answers --cleaning agents


explain why halogens are oxidising agents - CorreCt Answers -when
halogens react they gain an electron (reduced)
so are oxidising agents


What is the trend in oxidising power down Group 7? - CorreCt Answers -
Decreases down the group


what is a displacement reaction - CorreCt Answers -when a more reactive
halogen will displace less reactive halide ions
(Cl2 is more reactive than Br2)


in group 7 which element is most reactive and likely to displace other
halogens in a reaction - CorreCt Answers -chlorine

, what is the colour of solution when Br2 is displaced - CorreCt Answers -
orange solution


what is the colour of the solution when I2 is displaced - CorreCt Answers -
brown solution


explain why halides are reducing agents - CorreCt Answers -looses
electrons
becomes oxidised
so is a reducing agent


what is the trend of reducing power of halides down the group - CorreCt
Answers -increases down group 7



what is an oxidising agent - CorreCt Answers -electron acceptor


what is a reducing agent - CorreCt Answers -electron donor


what are the products of sodium fluoride reacting with concentrated
sulfuric acid (H2SO4) - CorreCt Answers -NaHSO4 (s) + HF (g)


give an observation for the reaction of sodium fluoride reacting with
concentrated sulfuric acid - CorreCt Answers -white misty fumes of HF


products of sodium chloride reacting with sulfuric acid (H2SO4) - CorreCt
Answers -NaHSO4 + HCl