Advertisements
Advertisements
प्रश्न
What type of reaction is represented by the following equation?
CaO + CO2 → CaCO3
उत्तर
Combination reaction
APPEARS IN
संबंधित प्रश्न
A solution of a substance ‘X’ is used for white washing.
- Name the substance ‘X’ and write its formula.
- Write the reaction of the substance ‘X’ named in (i) above with water.
What type of reaction is represented by the following equation?
CaO + H2O → Ca(OH)
Consider the following equation of the chemical reaction of a metal M:
4M + 3O2 → 2M2O3
This equation represents:
(a) combination reaction as well as reduction reaction
(b) decomposition reaction as well as oxidation reaction
(c) oxidation reaction as well as displacement reaction
(d) combination reaction as well as oxidation reaction
When hydrogen burns in oxygen, water is formed and when water is electrolysed, then hydrogen and oxygen are produced. What type of reaction takes place:
(a) in the first case?
(b) in the second case
What do you understand by a chemical bond ?
What do you observe when when dilute sulphuric acid is added to barium chloride solution ?
What are chemical combination or synthesis reactions ? Chemical combination or synthesis:
Which of the following are exothermic processes?
(i) Reaction of water with quick lime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)
Combustion reactions are always ____________.
A metal ribbon 'X' bums in oxygen with a dazzling white flame forming a white ash 'Y'. The correct description of X, Y and the type of reaction is: