Advertisements
Advertisements
प्रश्न
What do you observe? When
Barium chloride is added to sodium sulphate solution
उत्तर
A white insoluble precipitate of barium sulphate is formed.
APPEARS IN
संबंधित प्रश्न
Give one example that illustrates the following characteristics of a chemical reaction:
Change in state
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
Negatively charged ions are called ..........
TRUE \ FALSE
Temperature at which a liquid starts boiling is known as the boiling point of that liquid. True or false ?
How is a strong electrolyte different from a weak electrolyte?
Fill in the blank.
Melting of ice is a _______ change.
Fill in the blank:
During a chemical reaction transfer of ________ takes place.
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)
Electron ______ is complete in each hydrogen in a hydrogen molecule.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Define:
Electrochemical reaction
Give one example
What do you observe when CO2 is passed through lime water first and then a little in excess.
Give a suitable example with an equation to show the representation of a chemical reaction.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
Chemical change is a temporary change.
Classify the following as physical or chemical properties
Most metal oxides form alkalis on interacting with water.
Which of the following is a chemical change?
Is the conversion of milk into ice cream a chemical change?
Write the chemical reaction of baking soda with lemon.
