Advertisements
Advertisements
प्रश्न
What do you observe? When
Barium chloride is added to sodium sulphate solution
Advertisements
उत्तर
A white insoluble precipitate of barium sulphate is formed.
APPEARS IN
संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Miscible liquids having slightly different boiling points can be separated by the
- evaporation
- distillation
- fractional distillation
- sedimentation
Explain the type of reactions on the basis of the direction of reaction.
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.
Define the following term:
Precipitate
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.
Complete and balance the following reaction:
\[\ce{CuCO3 ->[\Delta]}\]
Give balanced equation for the following conversion affected by heat alone on the substance:
Ammonium dichromate to nitrogen
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
Give an example where heat, light, and sound are produced during a chemical change.
We are advised to not to play with fireworks. Give reason.
