0620/12 Chemistry Oct Nov 2017 Online Test | Cambridge IGCSE MCQ
CIE
IGCSE
Chemistry (0620)
بهمن
2017
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 38
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه
آزمون نمره منفی دلرد

پیش نمایش صفحه اول فایل
Aqueous sodium hydroxide is added to a solution of a salt. A blue precipitate is formed which does not dissolve in excess.
Aluminium foil is added to the mixture and the mixture is warmed. A gas is produced that turns damp red litmus paper blue.
What is the name of the salt?