Advertisements
Advertisements
Question
A white precipitate can be obtained by adding dilute sulphuric acid to:
(a) CuSO4 solution
(b) Nacl solution
(c) BaCl2 solution
(d) Na2SO4 solution
Advertisements
Solution
(c) BaCl2 solution
BaCl2 + H2SO4 → BaSO4 + 2HCl
White ppt.
APPEARS IN
RELATED QUESTIONS
Balance the chemical equation.
\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]
Balance the gievn equation:
NaOH + H2SO4
Na2SO4 + H2O
Carbon monoxide reacts with hydrogen under certain conditions to form methanol (CH3OH). Write a balanced chemical equation for this reaction indicating the physical states of reactants and product as well as the conditions under which this reaction takes place.
Which of the following does not involve a chemical reaction?
The chemical reaction between quicklime and water is characterised by:
(a) evolution of hydrogen gas
(b) formation of slaked lime precipitate
(c) change in temperature of mixture
(d) change in colour of the product
Write symbolic representation for the following word equation and balance them :
Carbon + Oxygen → Carbon dioxide.
Write your observation and name the product when zinc reacts with dilute hydrochloric acid.
Complete the following equation:
CH2 + H5OH `("Hot Conc." H_2SO_4)/`>
Balance the following equation:
Zn + KOH → K2ZnO2 + H2
Balance the following equation:
S + H2SO4 → SO2 + H2O
Balance the following equation:
C + H2SO4 → CO2 + H2O + SO2
Write the balanced chemical equations of the following reactions.
chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride
Representation of the results of a chemical change – is a chemical equation.
For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓
Answer the following:
Write the word equation for the above molecular equation.
Name the following:
Two gases which react under pressure in presence of a catalyst at elevated temperatures to give a gaseous product.
Name the following:
A catalyst which increases the rate of a chemical reaction.
Give an example of a chemical equation in which two reactants form:
one product
Balance the following simple equation:
Mg + N2 → Mg3N2
Write a balanced equation for the following word equation:
Potassium nitrate → Potassium nitrite + Oxygen
With reference to a chemical equation state which of the statements 1 to 5 pertain to A or B.
A: Information provided by a chemical equation.
B: Limitations of a chemical equation.
- The nature of the individual elements.
- The speed of the reaction.
- The state of matter in which the substance is present.
- The completion of the reaction.
- The direction of the reaction.
A dilute ferrous sulphate solution is gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
