Which amongst the following can be said to be true about cultural services and activities?
Select the correct option:
All 1, 2 & 3
Only 1 & 3
(A)
Be and Al exhibit diagonal relationship. Which of the following statement/s about them is/are false? 1. Both react with HCl to liberate H2 2. They are made passive by HNO3 3. Their carbides give acetylene on treatment with water. 4. Their oxides are amphoteric.