What is the reaction of acids with metals ? How do you test the products?

What is the reaction of metal oxides with acids ?

How do you test the CO_2 gas ?

Which gas is usually liberated when an acid reacts with a metal ? How will you test for the presence of this gas ?

How do you test 'Bakelite' plastic?

Describe an activity to observe the reaction of metal oxides with acids. What do you observe ?

What is this instrument ? How do you use this ?

What is the sweet dilemma ? How do you support the argument of the student Razia?

What are the hydrides of chalcogens ? How do you prepare them in the laboratory?

What are the materials required to prepare and test the hydrogen gas in the lab by using acid and metal ? Where do you observe the evolved hydrogen gas ?

What is budding? How do you demonstrate it?