5090/11 Biology May Jun 2023 Quiz | Cambridge O-Level MCQ
Cambridge
O-Level
Biology (5090)
مرداد
2023
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
A student carried out two tests on a liquid. When Benedict’s solution was added to half of the liquid and heated, it turned red. When biuret reagent was added to the rest of the liquid, it turned mauve (purple).
Which conclusion is correct?