Advertisements
Advertisements
प्रश्न
State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
पर्याय
oxidation
reduction
Advertisements
उत्तर
oxidation
\[\ce{Al->Al+++}\]
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Condensation of steam is not a chemical change.
What are (i) positive catalysts and (ii) negative catalysts? Support your answer with one example for each of them.
State what you would observe when the following substance is heated in a glass test tube Copper (II) carbonate Red lead .
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)
A colourless solution of calcium hydroxide in a test tube turns ______ on blowing in it through a blow tube for some time.
Give an example of the following chemical changes.
A reaction involving
(i) Change of state
(ii) formation of precipitate
Give a chemical test to distinguish between the following gases.
SO2 and Cl2
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
Name the following:
The products obtained during ‘photosynthesis’ – which is a chemical change.
We are advised to not to play with fireworks. Give reason.
Write a note on the following:
Curdling of milk
