Advertisements
Advertisements
प्रश्न
Explain the term reactant and product giving examples.
Advertisements
उत्तर
Product: the substance which forms as a result of chemical reaction is called products.
The new substance produced as a result of chemical reaction is called products.
For example: When two sodium atoms react with two chlorine atoms(reactants), they give a completely new compound (product) i.e. sodium chloride (two atoms).
APPEARS IN
संबंधित प्रश्न
Complete and balance the following chemical equations
Na + H2 O →
Define electrolysis.
Write true or false .
A black residue is formed when sugar is heated .
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 + Cu
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 white particles of baking soda disappear when put in lemon juice. This means that it is a ______ change.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Complete and balance the following reaction:
Pb(NO3)2 + KI →
Complete and balance the following reaction:
\[\ce{NH3 + O2 ->[\Delta]}\]
State the original colour of the following substance and colour of residue obtained after heating.
Zinc carbonate
Distinguish by dilute sulphuric acid.
Sodium sulphide and sodium sulphite?
Name the following:
The products obtained during ‘photosynthesis’ – which is a chemical change.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A coloured substance which leaves on strong heating a black residue and evolves two colourless gases one of which is acidic and the other neutral.
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
State the following reaction represent oxidation or reduction.
\[\ce{Cu++->Cu}\]
Give a balanced equation for the conversion of an ammonium salt to a basic gas.
_____ is the basic material to manufacture urea.
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
Classify the following as physical or chemical properties
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
Give an example of a chemical reaction for the following situation:
A change in colour is observed
______ are substances that speed up the process of a chemical change and it will not undergo any change during the course of the reaction.
