Advertisements
Advertisements
प्रश्न
Why is acidified water considered to be a good conductor of electricity?
Advertisements
उत्तर
Hydrogen ions are created in the presence of water when an acid and water are combined. The acidified water is a good conductor of electricity because of the presence of these ions.
APPEARS IN
संबंधित प्रश्न
What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.
Why are metals called electropositive elements whereas non-metals are called electronegative elements?
Complete and balance the following equation:
Na + O2 →
What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
Write the equation for the reaction of Iron with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
What is meant by the reactivity series of metals? Arrange the following metals in an increasing order of their reactivities towards water:
Zinc, Iron, Magnesium, Sodium
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg
A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.
Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
