Advertisements
Advertisements
Question
Select the correct answer for the following options:
The gas which reacts with oxygen to give a neutral liquid.
Options
Hydrogen
Copper [II] oxide
Oxygen
Copper [II] hydroxide
Ammonia
Advertisements
Solution
Ammonia
APPEARS IN
RELATED QUESTIONS
How do the following help in bringing about a chemical change?
catalyst .
Complete and balance the following chemical equations:
N2 + O2 →
Complete and balance the following chemical equation:
\[\ce{Pb(NO3)2 ->[Heat]}\]
FILL IN THE BLANK
On reaction with sulphuric acid solution, barium chloride forms a white precipitate of ........ sulphate.
TRUE \ FALSE
The evolution of a gas during a chemical reaction is shown by an arrow pointing downwards. True or false ?
Write true or false :
Hydrogen sulphide has rotten egg smell .
Copper carbonate when heated, it turns :
A solution of a substance ‘X’ is used for white washing write the reaction of the substance ‘X’ named in (a) above with water.
| Reactants | Products | Type of chemical reaction |
| BaCl2(aq) + ZnSO4(aq) | H2CO3(aq) | Displacement |
| 2AgCl(s) | FeSO4(aq) + Cu(s) | Combination |
| CuSO4(aq) + Fe(s) | BaSO4↓ + ZnCl2(aq) | Decomposition |
| H2O(l) + CO2(g) | 2Ag(s) + Cl2(g) | Double displacement |
Out of sodium and sulphur which is a metal? Explain its reaction with the oxygen.
Complete the statement by filling the gap using an 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)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Give an example of a reaction where the following are involved
Light
What do you observe when dilute sulphuric acid is added to the following:
Sodium Sulphide
Give a word equation for the following reaction.
Two gases which combine to give a solid.
Give a word equation for the following reaction.
An exothermic reaction where both the reactants are gases, one of which is oxygen.
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Zinc carbonate.
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.
______ is a chemical substance is used in whitewashing.
