paper 1 October/November 2003 Chemistry (0620) IGCSE
Cambridge
IGCSE
Chemistry (0620)
بهمن
2003
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه

پیش نمایش صفحه اول فایل
A solid fertiliser contains ammonium sulfate.
A sample of the fertiliser is shaken with water.
To show the presence of ammonium ions in the solution, ......1...... is added and the gas
produced is tested with damp ......2...... litmus paper.
Which words complete gaps 1 and 2?