CHEMISTRY [1 Mark Question Answer]

Name a metal which does not react with water or dilute HCI.

Name a metal which displaces hydrogen very slowly from dilute HCL.

Name a metal which reacts vigorously with dilute HCI.

Name a metal which reacts explosively with dilute HCL

Name the metal which on heating reacts with steam, but reaction is reversible.

Name the metal which does not react with cold water, but reacts with boiling hot water very slowly.

Name the metal which reacts fastest with cold water

How do the following react with water? Write balanced chemical equations
(a) Potassium hydride
(b) Calcium hydride.

Name two metals which will displace hydrogen from strong caustic alkalies. Write chemical equations in support of your answer.

Amongst the metals iron, magnesium, zine and aluminum, which reacts
(a) fastest with dil. sulphuric acid and
(b) slowest with dilute sulphuric acid. Write fully balanced chemical equations.