Advertisements
Advertisements
प्रश्न
State your observation for the following case :
Dry red rose petals are placed in the jar of sulphur dioxide.
Advertisements
उत्तर
Dry SO2 has no effect on dry red rose petals.
APPEARS IN
संबंधित प्रश्न
State the inference drawn from the following observations:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide. Identify S.
Define the following term : Hygroscopic substance
What would you observe in the following case?
Concentrated sulphuric acid is added to equal volumes of cold water.
Give reason for the following:
Cotton clothes get burnt with concentrated sulphuric acid.
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Hydrogen
What do you observe when barium chloride solution is added to dilute sulphuric acid ?
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Zinc hydroxide
Write the balanced chemical equation for the following conversion:
Copper sulphate from copper and concentrated sulphuric acid.
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with iron (II) sulphide.
Differentiate between the following pair based on the criteria given in the bracket:
Cane sugar and hydrated copper sulphate [using concentrated H2SO4]
