Advertisements
Advertisements
प्रश्न
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]
पर्याय
Combination
Decomposition
Displacement
Precipitation
Neutralization
Advertisements
उत्तर
The given reaction is a combination reaction.
\[\ce{NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)}}\]
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron and rust are the same substances.
FILL IN THE BLANK
A .............. change is a temporary change.
Explain the type of reactions on the basis of the direction of reaction.
State what you would observe when the following substance is heated in a glass test tube red lead.
State what you would observe when the following substance is heated in a glass test tube Copper (II) carbonate Red lead .
Define a photochemical reaction.
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium chloride
Select the correct answer for the following options:
The black residue obtained on heating copper carbonate.
Select the correct answer for the following options:
The basic gas obtained when two gases react in presence of a catalyst and the reaction is exothermic.
Give reason for the following:
Electrolytic decomposition of water is a reaction involving change of state.
Complete the table given below.
| Heat on copper carbonate | Test for gas evolved |
________ is a chemical substance which alters the speed of a chemical reaction.
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?
Classify the following processes into physical or chemical changes:
- Beating of aluminium metal to make aluminium foil.
- Digestion of food.
- Cutting of a log of wood into pieces.
- Burning of crackers.
Write word equations for two chemical reactions with the help of materials given in the box.
| Air, copper sulphate, iron, vinegar, iron oxide, carbon dioxide, iron sulphate, copper, lime water, water |
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Can you change rust back into iron by some simple method?
The chemical name of baking soda is sodium bicarbonate.
Write the characteristics of chemical change.
When milk is mixed with coffee decoction, the colour of milk and decoction changes due to ______.
