Advertisements
Advertisements
प्रश्न
Select the correct answer for the following options:
The gas which reacts with oxygen to give a neutral liquid.
विकल्प
Hydrogen
Copper [II] oxide
Oxygen
Copper [II] hydroxide
Ammonia
Advertisements
उत्तर
Ammonia
APPEARS IN
संबंधित प्रश्न
Write the missing reactants and products and balance the equations.
................+ HCI `→` NaCI + `"H"_2"O"` + .........................
TRUE \ FALSE
A precipitation reaction takes place only in a solution.
How is a strong electrolyte different from a weak electrolyte?
Name the type of chemical reaction shown by the following equation:
2Mg + O2 → 2MgO
A solution of a substance ‘X’ is used for white washing write the reaction of the substance ‘X’ named in (a) above with water.
Explain by writing a word equation.
Limestone powder disappears on adding to dilute hydrochloric acids.
Give an example of a reaction where the following are involved
Heat
Multiple choice:
Thermal decomposition of sodium carbonate will produce
What do you observe? When
Sodium chloride solution is added to silver nitrate solution.
State the original colour of the following substance and colour of residue obtained after heating.
Copper carbonate
Give a chemical test to distinguish between the following gases.
SO2 and Cl2
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Zinc carbonate.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Lead nitrate.
A reaction between an acid and a base is called ______.
Melting of wax is a change where a solid changes to liquid state. Give one more such change which you observe in your surroundings
Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.
Iron and rust are the same substances.
