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प्रश्न
Complete and balance the following chemical equations:
N2 + O2 →
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उत्तर
N2 + O2 → 2NO(g)
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संबंधित प्रश्न
Complete and balance the following chemical equations:
Fe `"SO"_4` + NaOH `→`
(aq.) (aq.)
Write the missing reactants and products and balance the equations.
NaOH + ............... `→` NaCI + ...................
FILL IN THE BLANK
Positively charged ions are called ........
Complete the statement by filling the gap using an appropriate term from the terms given in the bracket.
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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
Catalyst
Give an example of the following chemical change.
Two gases combine to form white solid
Write the chemical reaction where the following changes are observed.
Physical state is changed
Give reason for the following:
Colourless concentrated sulphuric acid in a test tube changes to blue on adding a small piece of copper to it.
What do you understand by 'chemical reaction'?
What do you observe? When
Water is added to the quick lime.
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.
NH3 and SO2
What do you observe when dilute sulphuric acid is added to the following:
Sodium Sulphide
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
Select the correct answer from the options given below:
State the gaseous product formed, when
An active metal reacts with dilute sulphuric acid.
Which of the following is not an “element + element → compound” type reaction?
Chemists identify gypsum as a natural indicator.
What is the use of indicator?
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
What changes do you expect?
______ is the chemical name of slaked lime.
