Elements Y and Z are both in Period 3 of the Periodic Table.
When the chloride of element Y is added to water, it reacts and a solution of pH 2 is produced.
When the chloride of element Z is added to water, it dissolves and a solution of pH 7 is produced.
Which statement explains these observations?
1 )
Both chlorides hydrolyse in water.
2 )
Element Y is magnesium and element Z is sodium.
3 )
Element Y is phosphorus and element Z is aluminium.
Element Y is silicon and element Z is sodium.
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...