Paper 1 October/November 2020 CHEMISTRY (9701/11) IGCSE
Cambridge
AS & A Level
Chemistry (9701)
بهمن
2020
شامل مباحث:
تعداد سوالات: 30
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
In the mass spectrum of compound J, the ratio of the height of the M + 1 ion peak to the height of the M + ion peak is 4 : 91.
Compound J forms a carboxylic acid when heated with acidified K$_2$Cr$_2$O$_7$.
What is compound J?