हिंदी

What is the Action of Water on Sodium ? Write Equation of the Chemical Reaction Involved. - Science

Advertisements
Advertisements

प्रश्न

What is the action of water on sodium ? Write equation of the chemical reaction involved.

Advertisements

उत्तर

Sodium reacts with water vigorously to form sodium hydroxide and hydrogen gas with a large amount of heat.
  2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) + HEAT

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३४]

APPEARS IN

लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 54.1 | पृष्ठ १३४

संबंधित प्रश्न

Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium


An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:


The reaction of an iron nail with copper sulphate solution is ........... reaction.

(a) Combination

(b) Displacement

(c) Double displacement

(d) Decomposition


A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.

In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why.


State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.


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 at the bottom of the reactivity series.


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


What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.


Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.


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 metals which can produce amphoteric oxides are:
(a) sodium and aluminium
(b) zinc and potassium
(c) calcium and sodium
(d) aluminium and zinc


State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury


Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.


Write the chemical equation for the following reaction:
Cinnabar is heated in the presence of air.


Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

  1. Good thermal conductivity
  2. Good electrical conductivity
  3. Ductility
  4.  High melting point

Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×