Hydrogen can be prepared with the metal zinc by using :
acid
Give an equation in each case.

Hydrogen can be prepared with the metal zinc by using : alkali Give an equation in each case.

Hydrogen can be prepared by

Hydrogen can be prepared with the metal zinc by using : water Give an equation in each case.

Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with : a divalent metal.

Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with : a monovalent metal

Hydrogen may be prepared in the laboratory by the action of a metal with an acid. Which of the metals copper, zinc, magnesium or sodium would be the most suitable ?

Hydrogen may be prepared in the laboratory by the action of a metal with an acid. Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric and concentrated nitric would you choose ? Explain why you would not use the acids you reject.

Starting from zinc how would you obtain hydrogen using - a. Steam b. A dilute acid c. An alkali give balanced equations for each & name the product formed in eahc case other than hydrogen] Name metal which will not react with the reactants above to give hydrogen.

Which metal is preferred for preparing hydrogen from: steam ? Write balanced equation for each case.

Why is sulphuric acid used in the preparation of HCI and HNO_3 ? Give equations in both cases.