हिंदी

When electric current is passed through acidulated water ______ of water takes place.

Advertisements
Advertisements

प्रश्न

When electric current is passed through acidulated water ______ of water takes place.

विकल्प

  • Oxidation

  • Displacement

  • Electrolysis

  • Reduction

  • zinc

  • copper

  • Double displacement

  • Decomposition

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

When electric current is passed through acidulated electrolysis of water takes place.

Explanation:

Water decomposes into hydrogen gas and oxygen gas when electric current is passed through acidulated water. Since decomposition of water takes place by means of electrical energy, it is called electrolysis.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Chemical reactions and equations - Exercise [पृष्ठ ४५]

APPEARS IN

बालभारती Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
अध्याय 3 Chemical reactions and equations
Exercise | Q 1. c. | पृष्ठ ४५

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Complete and balance the following chemical equations

Na + H2 O →


What do you observe when iron nail is kept in copper sulphate solution for sometime.


TRUE \ FALSE

Copper can displace iron from iron sulphate.


Name three reducing agents ?


Fill in the blank

A new substance is always formed in a _______ change.


Write true or false .
A black residue is formed when sugar is heated .


Explain the following reaction with one suitable example of Displacement reaction.


Name the type of chemical reaction shown by the following equation:

Fe + CuSO4 → FeSO4 + Cu


Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition) 

The conversion of ferrous sulphate to ferric sulphate is ______ reaction. 


Give an example of a reaction where the following are involved

Pressure


What do you understand by 'chemical reaction'?


What do you observe? When

Sodium chloride solution is added to silver nitrate solution.


What do you observe when HCI is passed through a silver nitrate solution.


On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.

A coloured substance which leaves a black residue and evolves two gases one of which is acidic and coloured and the other neutral and colourless.


Limestone contains ______ mainly.


A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?


Analogy:

H2O: Water:: NaCl: ______.


Classify the following processes into physical or chemical changes:

  1. Beating of aluminium metal to make aluminium foil.
  2. Digestion of food.
  3. Cutting of a log of wood into pieces.
  4. Burning of crackers.

Rusting of iron is  ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×