Paper 1 May/June 2007 CHEMISTRY (9701/01) IGCSE
CIE
AS & A Level
Chemistry (9701)
شهریور
2007
شامل مباحث:
تعداد سوالات: 30
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه

پیش نمایش صفحه اول فایل
Two procedures are described.
1 Sulfur is burned in an excess of oxygen and then NO is added to the product mixture.
2 Sulfur is burned in an excess of oxygen and then $N{O_2}$ is added to the product mixture.
Which procedures will produce some sulfur trioxide, $S{O_3}$?