Advertisements
Advertisements
प्रश्न
State the type of reactions for the following represent and balance the ones that are not balanced.
Cl2 + 2KBr → 2KCl + Br2
Advertisements
उत्तर
Cl2 + 2KBr → 2KCl + Br2
Displacement reaction
APPEARS IN
संबंधित प्रश्न
Write the missing reactants and products and balance the equations.
................+ HCI `→` NaCI + `"H"_2"O"` + .........................
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction reaction is the exact opposite of
- displacement reaction
- decomposition reaction
- oxidation reaction
- none of these
What do you observe when Cl2 is passed through potassium iodide (KI) solution.
Give a word equation for the following reaction.
A compound which on heating shows – colour change from brown to yellow.
Give reason for the following:
Electrolytic decomposition of water is a reaction involving change of state.
A chemical reaction is often accompanied by external indications or characteristics which include –
- Colour change
- Effervescence or gas evolved
- Evolution or absorption of heat
- Formation of a precipitate.
With reference to each of the above indications, state the external indication seen during – Addition of dilute hydrochloric acid to silver nitrate.
Explain with the help of balanced equations, how precipitation reactions are used for identifying the positive radicals in three different salts, each having a different cation [positive ion].
______ change results in the change of the substance.
Is the conversion of milk into ice cream a chemical change?
Both CO2 and H2 gases are ______.
