मराठी

How Do Metals React with Hydrogen? Explain with an Example.

Advertisements
Advertisements

प्रश्न

How do metals react with hydrogen? Explain with an example.

Advertisements

उत्तर

Metals generally do not react with hydrogen. But some reactive metals like sodium, potassium, calcium and magnesium can force the hydrogen atom to accept the electrons given by them and form salt-like ionic solid compounds called metal hydrides.

For example:  
2Na(s) + H2(g) → 2NaH(s)

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३३]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 43.1 | पृष्ठ १३३

संबंधित प्रश्‍न

Write equations for the reactions of iron with steam. 


Write the electron-dot structures for sodium, oxygen and magnesium.


Show the formation of Na2O by the transfer of electrons.


Differentiate between metal and non-metal on the basis of their chemical properties.


Why are metals called electropositive elements whereas non-metals are called electronegative elements?


From amongst the metals sodium, calcium aluminium, copper and magnesium, name the metal:
(i) which reacts with water only on boiling, and
(ii) another which does not react even with steam.


Name the metal which has been placed just below copper in the reactivity series.


Write equation for the reaction of magnesium with oxygen.


Complete and balance the following equation:


Fill in the following blank with suitable word:

The white powder formed when magnesium ribbon burns in oxygen is of ....................


With the help of examples, describe how metal oxides differ from non-metal oxides.


Why does aluminium not react with water under ordinary conditions?


Describe the reaction of potassium with water. Write the equation of the reaction involved.


Write the equation for the reaction of Aluminium with dilute hydrochloric acid.

Name the products formed. Also indicate the physical states of all the substances involved.


The elements whose oxides can turn litmus solution red are:
(a) lithium and sodium
(b) copper and potassium
(c) carbon and hydrogen
(d) phosphorus and sulphur


Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe


What is the cause of chemical bonding (or chemical combination) of atoms of elements?


Choose the correct alternative and rewrite the following:

Which of the following is lue in colour?


Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×