Paper 1 May/June 2018 CHEMISTRY (9701/11) IGCSE
CIE
AS & A Level
Chemistry (9701)
شهریور
2018
شامل مباحث:
تعداد سوالات: 30
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه

پیش نمایش صفحه اول فایل
A solid sodium halide, NaX, is reacted with concentrated sulfuric acid. The lowest oxidation state of sulfur in the products is +4.
Halogen Y$_2$ is less volatile than halogen X$_2$.
What are the identities of sodium halide NaX and halogen Y$_2$?