Advertisements
Advertisements
प्रश्न
What do you observe when Cl2 is passed through potassium iodide (KI) solution.
Advertisements
उत्तर
If in the solution of KI (Potassium iodide), we pass Chlorine gas (Cl2), then Chlorine will displace iodine from KI, and form Potassium Chloride (KCl), and liberates iodine,
\[\ce{Cl2 (aq) + 2 KI(aq) → 2 KCl (aq) + I2 (aq)}\]
When Iodine gas is passed into starch solution the solution becomes blue-black in colour.
APPEARS IN
संबंधित प्रश्न
Complete and balance the following chemical equations:
`"H"_2"S"` + `"CI"_2` `→`
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction is a chemical reaction in which there is
- removal of hydrogen
- removal of oxygen
- addition of oxygen
- none of these
Balance the following equation :
Fe + H2O → Fe3O4 + H2
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The spoiling of food is a chemical change which is recognized from the generation of certain ______ due to it.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Water
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
Explain the Silver nitrate solution is kept in coloured reagent bottles in the laboratory.
Heat may evolve or be absorbed during a ______ change.
Write a note on the catalyst.
