Advertisements
Advertisements
प्रश्न
Define a combination reaction. Give one example of an exothermic combination reaction.
उत्तर
A chemical reaction in which 2 or more reactants combine to form a single product, the reaction is known as combination reaction. Most of the combination reactions are exothermic because they involve the formation of new bonds. For example,
\[\ce{H2_{(g)} + Cl2_{(g)} -> 2HCl_{(g)}}\]
\[\ce{SiO2_{(s)} + CaO_{(s)} -> CaSiO3_{(s)}}\]
APPEARS IN
संबंधित प्रश्न
What happens chemically when quicklime is added to water filled in a bucket?
Gas A, which is the major cause of global warming, combines with hydrogen oxide B in nature in the presence of an environmental factor C and a green material D to form a six carbon organic compounds E and a gas F. The gas F is necessary for breathing.
(a) What is gas A?
(b) What is the common name of B?
(c) What do you think could be C?
(d) What is material D? Where is it found?
(e) Name the organic compound E.
(f) What is gas F? Name the natural process during which it is released.
Give one example of a combination reaction which is also endothermic.
What do you understand by a chemical bond ?
What do you observe when solid lead nitrate is heated?
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{CaCO3_{(s)} ->[heat]CaO_{(s)} + CO2_{(g)}}\]
Explain the terms with examples.
Combination reaction
Select the correct answer for the statement given below:
The product formed during direct combination reaction of carbon dioxide and water.
Which of the following is not a physical change?
Balance the following chemical equation and identify the type of chemical reaction.
`"Na"("s") + "S"("s") overset("(Fuse)")(->) "Na"_2"S"("s")`
